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。
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。
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.
乳化液煤层液压钻使用同步马达作为其驱动元件，可有效解决乳化液对马达机体的腐蚀问题。
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