空气手动吹管|沙特标准|SASO-ISO-9012
SASO-ISO-9012
Gas welding equipment – Air-aspirated hand blowpipes – Specifications and tests
气焊设备-空气手动吹管-规格和测试
空气手动吹管|沙特标准|SASO-ISO-9012
SASO-ISO-9012
Gas welding equipment – Air-aspirated hand blowpipes – Specifications and tests
气焊设备-空气手动吹管-规格和测试