Please contact our technical service department if your applications involve interaction with oxygen or acetylene gases.

如果用户的应用包括氧气或乙炔气体的相互作用,请联系我们的技术服务部门.

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Under the association Administrative Department, Technical Service Department, Training Department, and Publicity Department.

协会下设办公室 、 技术咨询部 、 教育培训部和宣传部等部门.

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