National standard anticorrosive spiral steel tube operation essential knowledge
When two forces acting on the same object are equal in magnitude and opposite in direction and act on the same straight line, the two forces are a system of equilibrium forces.Needle roller bearing can bear a large radial load, but can not bear the axial load, because the needle roller friction, it is only suitable for low speed occasions.Motor start is divided into full voltage start and reduced pressure start.
Measurement error can be divided into systematic error, random error and gross error.The power equipment of the automatic regulation machine tool includes electric motor and control electric apparatus.A device that ensures that the position of the workpiece determined does not change during the machining process is called a clamping device.Five, cutting plasticity of the larger metal materials, the formation of ribbon cutting groove.Six, steel pipe straightener is the spiral steel pipe after welding, through the twill of the upper and lower two groups of hyperbolic roller body to make its repeated bending and gradually straight equipment.Critical temperature the critical temperature at which a phase transition occurs when a batch of steel is heated or cooled.
Cangzhou Steel Pipe Group (CSPG) Co., Ltd
Cangzhou Steel Pipe Group (CSPG) Co., Ltd. is a large-sized, key metallurgic enterprise of Hebei Province in North China, whose history dates back to 1994. CSPG currently em/paces six member companies with products varying from SSAW, LSAW, ERW, seamless steel pipes to 3PE pipes, galvanized pipes, casing pipes, etc. A Joint-stock corporation, CSPG occupies an area of 600,000 square meters with a total asset of $530 million.
Specialized in the production of straight welded pipe spiral pipe galvanized pipe 3PE/3PP/FBE/TPEP internal and external epoxy powder internal and external epoxy resin cement mortar two cloth three oil buried pipeline IPN8710 non-toxic drinking water internal and external plastic coated lining plastic and other anti-corrosion pipe fittings for oil and gas pipeline water conservancy projects
Executive standard :DIN30670 DIN30678 CSA Z245 AFNOR nf49-710/711 NACE rp0394/0490 AWWAC 210/C213GB/T9711 API 5L ISO 3183Material: Q235B/Q355BGR A GR B x42-x80 l245-l555
Business scope: 21.3mm-3620mmLSAW submerged arc welded pipe 325-2020mmERW straight welded pipe 6mm-711mmSMLS seamless tube 10-1120mmSSAW spiral steel tube 219-3620mmDemand for quality suppliers and partners