Selling stamping head the, supply the stamping head http://www.guohuadianci.com/ phone 0317-8210122, phone 13,722,724,665 stamping head demarcation of control measures: (1) multiple weld bead large head plant head, such as spherical container should be assembled links into the overall after welding the welding response, said, and to comply with the provisions of the welding sequence. (2) multi-weld bead large parts, such as melons flap combined head and limb combination housing transition section, in addition to the implementation of the above requirements, should also be in the welding site located lip mounting fixture. (3) long the division multiple section group welding head plant head size section of the cylinder material released weld shrinkage amount appropriate to avoid welding the rear housing shorten phenomenon.