API STD 600
发布时间:2024-03-22 11:39:48 点击量:922
Steel Gate Valves—Flanged and Butt-welding Ends, Bolted Bonnets
钢制闸阀-法兰和对焊端、螺栓连接阀盖
Steel Gate Valves—Flanged and Butt-welding Ends, Bolted Bonnets
钢制闸阀-法兰和对焊端、螺栓连接阀盖