Introduce welded seam specification, standards performed, inspectation items and acceptable index for welding of body and joint pipe.
介绍了阀体与接管焊接的焊缝技术要求、执行标准、检验内容及合格指标。
2
The pulse laser cutting is a new working process, which can make the seam to contact better with the body of knife, so the strength, life and rigidity of the die board have risen.
用脉冲激光切割模切板使切缝和刀体保持良好的接触，提高了模切板的刚度、强度及使用寿命。
3
The hydraulic seam drill is equipped with the synchronous gear motor as the driving part, which can effectively solve the corrosive problem of the emulsion to the motor body.