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介绍一种实用、新型CO_2焊枪喷咀云马飞机制造厂(561019)陆树明IntroductingapracticalandnewtypeCO_2weldinggunnozzle¥(Yunmaairacraftfototry)LuShuming“焊机好用、...
Introduction of a practical, new CO_2 torch nozzle Yunma Aircraft Factory (561019) Lu Shuming IntroductingapracticalandnewtypeCO_2weldinggunnozzle ¥ (Yunmaairacraftfototry) LuShuming "welder easy to use, ...