久久国产精品影院,国产va免费精品观看,真实呦女网站,成人精品一区二区三区,夜色精品国产一区二区,狠狠干2017,亚洲国产精品乱码一区二区三区

■特點：
☆連接形式有兩種：短圓錐型和短圓柱螺紋型。
☆超大通孔，可手動調(diào)整，動力夾緊，夾持精度高。
☆根據(jù)管子長度，可成對使用。
☆適用于大口徑管子螺紋加工，管子切斷、焊接等。
☆是石油、化工、地質(zhì)等行業(yè)的理想夾具。
■Specificity:
☆The chucks have two mounting types:direct mounting and short cylindrical thread mounting.
☆Wigh large through hole , manual adjustment, clamping by power and high accuracy .
☆A(yù)ccording to the length of the pipe ,the chucks can be used in pairs.
☆Suitable for large diameter pipe thread maching ,pipe cutting and welding ,etc.
☆The chucks are the ideal clamping tools for use in the petroleum and chemical industry and geological fields.