Cang Sheng Hebei Pipe Manufacturing Co., Ltd. Direct stainless steel head stainless steel head, DN500 * 4 stainless steel head priced to sell stainless steel head heated real reason stainless steel head and thicker than 14mm of head to be heated reasons: large head size, plate thick, large deformation resistance, not deformed. Heating the plastic material can be increased, decreased deformation resistance. The reason for the cold, spinning the head to be heat-treated: after cold deformation (Spinning is carried out in the cold state), head of the hardness, strength increases, lower ductility, toughness, work hardening occurs. The heat treatment can eliminate this phenomenon, the plastic material to improve the toughness and reduce the hardness. Heating and heat treatment is not the same, but the heat molding, heat molding role after heat treatment, so hot after the head is usually not needed for heat treatment. The company specializes in the production of stainless steel head, 304 large-diameter stainless steel head cheap wholesale, please call Cang Sheng Hebei Pipe Manufacturing Co., Ltd. specializing in the production head, high pressure head, large diameter spherical head 304 stainless steel head offer, high pressure head stamping head, spinning head, steel head, stainless steel head, stainless steel composite head, oval head, round head, conical head 304 large-caliber stainless steel head, dished head, spherical head 316 butterfly stainless steel head construction, hemispherical head, flat head, no head straight edge, product diameter up to 5000mm head: in the low pressure vessel and cylinder welded connection end structure can not be demolished. Better DN500 * 4 stainless steel head quality, the lowest price Shannan stainless steel head from Hebei Cang Sheng Pipe Manufacturing Limited. Cang Sheng Hebei Pipe Manufacturing Co., Ltd. (www.csyrb.com) (www.hbcsgj.com) Hebei Cangzhou, elbow leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Cang Sheng Pipe leadership with the staff warmly welcome all inquiries negotiations to create Cang Sheng Pipe better future.