Ex Works (EXW)
This term means that the seller delivers when it places the goods at the disposal of the buyer at the seller’s premises or at another named place (i.e., works, factory, warehouse, etc.). The seller does not need to load the goods on any collecting vehicle, nor does it need to clear the goods for export, where such clearance is applicable.
Free Carrier (FCA)
This term means that the seller delivers the goods to the carrier or another person nominated by the buyer at the seller’s premises or another named place. The parties are well advised to specify as clearly as possible the point within the named place of delivery, as the risk passes to the buyer at that point.
Carriage Paid To (CPT)
This term means that the seller delivers the goods to the carrier or another person nominated by the seller at an agreed place (if any such place is agreed between parties) and that the seller must contract for and pay the costs of carriage necessary to bring the goods to the named place of destination.
Carriage and Insurance Paid To (CIP)
This term means that the seller delivers the goods to the carrier or another person nominated by the seller at an agreed place (if any such place is agreed between parties) and that the seller must contract for and pay the costs of carriage necessary to bring the goods to the named place of destination. The seller also contracts for insurance cover against the buyer’s risk of loss of or damage to the goods during the carriage. The buyer should note that under CIP the seller is required to obtain insurance only on minimum cover. Should the buyer wish to have more insurance protection, it will need either to agree as much expressly with the seller or to make its own extra insurance arrangements.
Delivered at Terminal (DAT)
This term means that the seller delivers when the goods, once unloaded from the arriving means of transport, are placed at the disposal of the buyer at a named terminal at the named port of place of destination. “Terminal” includes a place, whether covered or not, such as a quay, warehouse, container yard or road, rail or air cargo terminal. The seller bears risks involved in bringing the goods to and unloading them at the terminal at the named port or place of destination.
Delivered at Place (DAP)
This term means that the seller delivers when the goods are placed at the disposal of the buyer on the arriving means of transport ready for unloading at the named place of destination. The seller bears all risks involved in bringing the goods to the named place.
Delivered Duty Paid (DDP)
This term means that the seller delivers the goods when the goods are placed at the disposal of the buyer, cleared for import on the arriving means of transport ready for unloading at the named place of destination. The seller bears all the costs and risks involved in bringing the goods to the place of destination and has an obligation to clear the goods not only for export but also for import, to pay any duty for both export and import and to carry out all customs formalities.
Free Alongside Ship (FAS)
This term means that the seller delivers when the goods are placed alongside the vessel (e.g., on a quay or a barge) nominated by the buyer at the named port of shipment. The risk of loss or damage to the goods passes when the goods are alongside the ship, and the buyer bears all costs from that moment onwards.
Free on Board (FOB)
This term means that the seller delivers the goods on board the vessel nominated by the buyer at the named port of shipment or procures the goods already so delivered. The risk of loss of or damage to the goods passes when the goods are on board the vessel, and the buyer bears all costs from that moment onwards.
Cost and Freight (CFR)
This term means that the seller delivers the goods on board the vessel or procures the goods already so delivered. The risk of loss of or damage to the goods passes when the goods are on board the vessel. The seller must contract for and pay the costs and freight necessary to bring the goods to the named port of destination.
Cost, Insurance and Freight (CIF)
This term means that the seller delivers the goods on board the vessel or procures the goods already so delivered. The risk of loss of or damage to the goods passes when the goods are on board the vessel. The seller must contract for and pay the costs and freight necessary to bring the goods to the named port of destination.
The seller also contracts for insurance cover against the buyer’s risk of loss of or damage to the goods during the carriage. The buyer should note that under CIF the seller is required to obtain insurance only on minimum cover. Should the buyer wish to have more insurance protection, it will need either to agree as much expressly with the seller or to make its own extra insurance arrangements.
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Group profile:
Shinestar Holdings Limited group, is the world's overall steel procurement service provider for all domestic and international steel buyers, providing production, purchasing, marketing,
processing, logistics, information in one of the overall service.
We Shinestar Holdings Group, founded in 1993, have RMB 280 million registered capital, and is the top 500 of private enterprise, top 50 of steel sales in China; Also stand top 100 of Hunan
private enterprise, ranked 3rd place among China's steel exporters, No.1 in steel sale in Hunan. Our group own 16 subsidiaries, including 11 domestic trading subsidiary companies, research
and development subsidiary company and 5 international trading subsidiary companies. Shinestar have over 600 employee in all. In the past 2015, we have reached 1.2 million tons on steel
quantity,and sales income exceeding 4 billion.
SHINESTAR will insist on our international developing strategy and expanding our international market step by step, area by area. Our company mission is to promote internal staff achievements and support external customers’ success. Taking advantage of our excellent staff competition, professional operation management, reliable product quality, efficient cost control management and integrated procurement services to solve clients problems and create value, to create “a big platform”to our staff, to promote our business growth,and ultimately to create“ a leading
steel procurement service provider”

Due to the high hardenability and strengthening the role of alloying elements, some high strength martensitic stainless steel, high speed tool steel and high-strength alloy steel. Often in the quench (or tempering) after a high-temperature tempering, the steel carbide appropriate aggregation obtain coarse carbide particles tempered sorbite organization (with ball annealing similar organizations) Thus, this delivery steel state has good cutting performance cooling directly after delivery, known as hot rolling or forging state, after hot rolling or forging steel and not subject to special heat treatment. Hot rolling (forging) termination temperature is generally 800-900 ℃, after the general natural cooling in the air, and thus hot rolling (forging) state corresponds to normalizing. Unlike strict normalizing heating temperature control, the difference because of hot-rolled (forging) termination temperature high and low. Thus it is well done microstructure and properties of the steel shaken ratio.
1. That many steel companies controlled rolling, since the finishing temperature control is very strict and forced cooling after finish rolling to take measures so that grain refinement of steel, delivery of steel with high mechanical properties. Since the appearance of the skin is covered with a layer of iron oxide, which has a certain degree of corrosion resistance, as stringent storage requirements are not kept cold drawn (rolled) state delivery of steel, medium-sized steel, thick steel plate can be in the open air yard or through thatch cover and store the non-twist and controlled cooling hot rod location is the truth, hot-rolled (forging) state of delivery than ordinary steel hot rod performance.
2. Cold drawn (rolled) on steel hardenability without any heat treatment and direct delivery, the status of the cold drawing, cold-rolled steel cold forming. Called cold-drawn or cold-rolled condition. Cold-drawn steel dimensions (rolled) state of high accuracy, good surface quality, appearance roughness is low, and have high mechanical properties, compared with the hot rolling (forging) state. Since the cold drawn (rolled) state of delivery without scale steel outer cover, and there is a big stress, vulnerable to corrosion or rust, and thus cold drawn (rolled) state steel, packaging, storage and transportation are more stringent requirements, generally need to be in the custody of the Treasury, and the Treasury should pay attention to the temperature and humidity control the delivery state within the state, said normalizing. Since normalizing heating temperature (hypoeutectoid steel as Ac3 + 3050 ° C eutectoid steel as Accm + 3050 ° C than hot-end temperature control strict,
3. Before normalizing the status of the steel factory and normalizing heat treatment. Thus the structure of the steel, a uniform performance. Since normalizing cooling faster, compared to steel annealed state. Pearlite structure of the steel increased number of pearlite lamellar and grain refinement of steel, and thus have higher mechanical properties, and help to improve the low carbon steel widmanstatten and eutectoid steel cementite net, for further heat treatment of the finished product do organizational readiness.
Molding method for manufacturing large diameter lsaw steel pipe are UOE molding method, a row of roll forming method (CFE), CE molding. For the vast majority of the final steps of the molding process is to conduct a post-weld tube expanding full-length, in order to improve the quality of welded steel pipe shape. Expanding become large-caliber Longitudinal production to ensure the quality of the finished tube an important process.
Expanding is a use of hydraulic or mechanical means from urging the steel pipe along the pipe wall bulged radially outward pressure molding process. Mechanical than hydraulic mode, the device is simple and more efficient, the world's most advanced large-caliber Longitudinal several enlarged diameter pipeline system processes are adopted, the process is as follows: Mechanical expanding the use of the split-side portion of the enlarged diameter of the segments radially expand, so the tube along the longitudinal direction in a stepwise manner to achieve the full length of the tube segments of plastic deformation process. It is divided into five stages
1. Initial stage full circle. Segments open until all the segments are exposed to the pipe wall, this time within the range of steps at various points within the steel tube radius are almost identical, steel preliminary full circle.
2. The nominal inside diameter of the stage. Segments from the front position began to decrease velocity, until you reach the desired position, this position is within the quality requirements of the finished pipe circumferential position.
3. Springback compensation stage. Segments in position to start the second stage further low speed until you reach the desired position, this position is within the missile complex process design requirements of previous pipe circumferential position.
Process to Spiral Steel Pipe
Spiral pipe processing means on the basis of the original spiral pipe manufactured in accordance with the requirements of the requirements of the desired product.
There are two common spiral pipe processing methods.
First, the thermal expansion method
1. bulging law
One is placed in a rubber tube, with the upper punch compression, the tube shaped projection; Another method is forming a hydraulic bulging in the middle of the tube filled with liquid, the liquid pressure of the tube to the desired shape of the drum, bellows Most of the production is used in this method.
2. forging method
By swaging machine will be part of the red end of the tube or extension, reducing the outer diameter, commonly swaging machine has a rotary, link type, roller.
3. The bending method
There are three methods more commonly, a process called stretching method, another method called stamping method, a third roller method, a roller 3-4, two fixing rollers, a steering roller, fixing roller pitch adjustment, the finished tube It is curved.
4. stamping
In the punch with a core tapered end of the tube to expand to the required size and shape.
5. rolling method
Generally do mandrel, suitable for thick-walled tubes inside of the circle edge.
6. The roller method
The core is placed in the tube, with the outer periphery of the roller pushing for round edge processing.
Second, anti-corrosion method
Such steel is that people often say that the corrosion spiral steel pipe, this processing method is defined as the surface layer and the inner spiral pipe coated with a chemical coating, a common form of corrosion 3pe corrosion, anti-corrosion epoxy resin, cement mortar corrosion, such processing method biggest goal is to extend the life of the pipeline.

Proper way to preserve spiral pipe
1) Storage space spiral steel pipe products or warehouse, should be selected in clean, smooth drainage area, away from harmful gases or dust in factories and mines. The presence on the ground to clear the weeds and all the debris, keeping a clean steel
2) In a warehouse not with acid, alkali, salt, cement, steel and other aggressive materials stacked together. Different varieties of steel should be stacked separately, to prevent confusion, to prevent contact corrosion
3) Large steel, rail, steel disgrace, large diameter steel pipe, forgings, etc., may open dumps
4) Small and medium steel, wire rod, rebar, medium diameter steel pipe, steel wire and wire rope, etc., can be expected in a well-ventilated storage shed, but it must be the underlying thatch
5) Some small steel, sheet, strip, silicon, or thin-walled small-diameter steel pipes, all kinds of cold-rolled, cold-drawn steel products and high prices, corrosive metal products, can be stored for storage
6) A warehouse should be based on selected geographical conditions, the general ordinary enclosed warehouse, that is the roof with walls, doors and windows tight, with the Treasury ventilation device
7) Requires the Treasury sunny attention to ventilation, rain close attention to moisture, keep the appropriate storage environment
The causes of large diameter spiral pipe wrong side: large diameter spiral steel pipe production, the wrong side have occurred with many of its factors. In the production practice, often the wrong side of the ultra-poor leaving dry pipe downgrade. Therefore analyze the causes and prevention of large diameter spiral pipe produced the wrong side is necessary.
1, the strip camber is caused by the wrong side of the main factors pipe. In forming the spiral welded pipe, steel strip camber angle will constantly change shape, leading to changes in the weld gap, resulting in open seams, wrong side or even take sides. Seriously affecting the quality of steel, so the observation camber steel strip coil-after by controlling the vertical roll can be cut to make the disc as well as the continuous removal of part of camber angle control and corrective shaping is to reduce the camber of the strip in the production process effective way to produce the wrong side.
2, due to the poor without trimming strip head and tail of shape and dimensional accuracy, could easily lead to hard docking strip caused by bending the wrong side.
3, strip head and tail welding butt weld reinforcement is larger when over molding if not handled properly, is likely to cause greater wrong side.
4, the strip edges in poor condition is another important cause of the wrong side of.