標(biāo)準(zhǔn) Standard
BS 1868; ASME B 16.34; API 6D; API598; ASME B 16.5; ASME B 16.25; ASME B 16.11; ASME B 16.10; ASME B 16.34; BS1868
控制方式 Control Type
手動,齒輪,電動
Manual, gear, electric
制造工藝Manufacturing Process
鍛造 Forging
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