气焊,加热和切割用吹管|沙特标准|SASO-ISO-5172
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气焊,加热和切割用吹管|沙特标准|SASO-ISO-5172
SASO-ISO-5172
Gas welding equipment - Blowpipes for gas welding, heating and cutting – Specifications and tests
气焊设备-气焊,加热和切割用吹管-规格和试验
SASO-ISO-5172
Gas welding equipment - Blowpipes for gas welding, heating and cutting – Specifications and tests
气焊设备-气焊,加热和切割用吹管-规格和试验
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