석유 및 천연가스 산업용 볼트 체결식 강제 덮개 게이트 밸브
石油 石油化工及相关行业螺栓阀盖阀门阀门

2005-12-30

Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
石油 石油化工及相关行业螺栓阀盖阀门阀门

2020-08-24

Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
石油、石化及相关工业用螺栓阀盖钢闸阀

2020-09-23

볼트 체결식 강제 덮개 게이트 밸브
螺栓钢门阀

2002-10-29

石油、天然气工业用螺柱连接阀盖的钢制闸阀
Bolted bonnet steel gate valves for petroleum and natural gas industries

2019-10-18

Industrial valves. Bolted bonnet steel gate valves
工业阀门 螺栓阀盖钢闸阀

2021-01-28

산업용 밸브 — 볼트 체결식 덮개 강제 게이트 밸브
工业阀门螺栓连接阀盖钢制闸阀

2023-11-30

Industrial valves — Bolted bonnet steel gate valves
工业阀门.螺栓连接阀盖钢闸阀

2021-01-25