波纹管截止阀WJ41H-16C德标高温蒸汽导热油锅炉切断截止阀DN50 65
¥287
铸钢氨用截止阀dn50J41B氨气氨液不锈钢截止阀止回阀H44B-16P
¥183.38
JY41W-16P氧气阀门脱脂禁油30416L不锈钢氧气专用法兰截止阀DN50
¥159.6
厂家专业生产碳钢气动截止阀法兰截止阀dn50
¥392
高压截止阀J41W-100P不锈钢法兰截止阀DN50截止阀阀门
¥161250
U41S-16高温 法兰柱塞阀 蒸汽锅炉 截止阀DN50 25 40 65 80 100
¥50
J41H-16C锅炉蒸汽截止阀高温碳钢铸钢法兰截止阀门DN25DN50 DN200
¥71
DN25截止阀DN50蒸汽阀门耐高温水开关手轮手动内螺纹不锈钢304J
¥25.5
全铜截止阀水开关dn15水管20空调25蒸汽32耐高温40铜4分6分寸dn50
¥10
J44H-16C铸钢法兰角式截止阀泉州质启直角低压角式法兰截止阀DN50
¥640
U41S-16高温 法兰柱塞阀 蒸汽锅炉 截止阀DN50 25 40 65 80 100
¥64.5U41S-16高温 法兰柱塞阀 蒸汽锅炉 截止阀DN50 25 40 65 80 100
¥64.5