狠狠综合亚洲综合亚洲色,√天堂资源中文www,玩弄放荡人妇系列AV在线网站,A级国产乱理论片在线观看

nbcxhy@cnnb-hongyun.com 0574-58585671

公司地址

浙江省寧波市慈溪市慈東工業(yè)區(qū)慈東北大道288號(hào)

電話(huà)號(hào)碼

0574-58585671

電子郵箱

nbcxhy@cnnb-hongyun.com

barbara@cnnb-hongyun.com

stamping parts

Stamping is a forming method that relies on presses and molds to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, so as to obtain workpieces (stampings) of the required shape and size. Stamping and forging are both plastic processing (or pressure processing), collectively known as forging. The blanks to be stamped are mainly hot-rolled and cold-rolled steel plates and strips.Stamping is a forming method that relies on presses and molds to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, so as to obtain workpieces (stampings) of the required shape and size. Stamping and forging are both plastic processing (or pressure processing), collectively known as forging. The blanks to be stamped are mainly hot-rolled and cold-rolled steel plates and strips.Stamping is a forming method that relies on presses and molds to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, so as to obtain workpieces (stampings) of the required shape and size. Stamping and forging are both plastic processing (or pressure processing), collectively known as forging. The blanks to be stamped are mainly hot-rolled and cold-rolled steel plates and strips.