Head, head spinning, stamping head, the standard head - Cangzhou Bronze Pipe Sales Co., Ltd. (Diaoya Wen 0317-5128359 18731744075) production head, pressure head, large-diameter head, pressure head, punching head , spinning head, carbon steel head, steel head, carbon steel composite head, oval head, round head, conical heads, dished ends, spherical head, hemispherical head , flat head, no head straight edge, product up to 5000mm diameter head: in the middle and low-pressure container, not connected with the detachable cylinder welded ends of the structure. 
 Cover: the cylinder with a removable flange end connections such as the structure. 
 Commonly referred to as head contains the head and cover. 
 Head or end cap is divided into convex heads, conical heads (only for some special purpose container), and flat head (pressure vessels, in addition to use in a man hole and hand hole cover).