Trade stamping elbow does not produce corrosion, pitting, corrosion or wear. Stainless steel or building one of the highest material strength of the material with gold stainless steel seamless elbow genus. Because stainless steel has good corrosion resistance, so it can maintain a permanent structural component engineering design integrity. Raw material manufacturers rolled seamless trade stamping elbow elbow pipe is round tube, tube embryos to go through cutting a length of about one meter cutter blank, and by conveyor belt to the furnace heated billet sent inside the furnace is heated to a temperature of about 1200 ° C furnace temperature control is a key issue to be released after the round tube piercing machine through pressure through air fuel for hydrogen or acetylene .http:... //www.hbghzg.com /