1, hot-rolled stainless steel seamless pipe is generally automatic pipe mill production. Solid tube defects after inspection and clear surface, cut into desired length 316 stainless steel doors, end to end in the perforated tube centering surface, and then sent to the furnace heating, perforation on the puncher. In the hole while continuing to rotate and move forward stainless steel door frame, in the role of head of the roll and, gradually forming a cavity inside the tube, called capillary. Continue rolling and then sent to the automatic rolling machine. Finally, after all the whole entire wall thickness are made of stainless steel door, the sizing mill sizing stainless steel doors, to specifications. The use of continuous production of hot-rolled seamless steel pipe mill is more advanced methods. Chemical composition of the material for chemical analysis, chemical composition meet the standard requirements. 2, the air pressure. Hydrostatic test on pressure pipe branch into it by the hydrostatic test, at a predetermined pressure value is not less than 5 seconds remain, non-disclosure, regular supply hydraulic pressure test for 2.45MPa. Pneumatic pressure test for P = 0.5MPAa. 3, corrosion test: the supply of industrial corrosion-resistant steel according to standard methods, or both protocols were steel corrosion corrosion resistance test, not a tendency to intergranular corrosion. 4, process performance testing: flattening test tensile test impact test flaring test hardness test metallurgical test bending test NDT (including eddy current testing .X-ray inspection and ultrasonic testing)........ Stainless steel doors, Shengda Po-commerce (certified), stainless steel doors are provided by Tianjin Bao Jie Shengda Trading Company. Bao Jie Tianjin Shengda Trading Company (www.sdbjsm.com) is Tianjin, hardware leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengda Po-commerce leader in the staff warmly welcome all inquiries negotiations to create Shengda Po-commerce a better future.