304不锈钢法兰截止阀 J41W 16P高温蒸汽切断阀门 DN50 DN80 DN100

J41H-16/25C铸钢法兰截止阀 WCB蒸汽截止阀DN20 25 40 50 80 100

J41T-16法兰截止阀铸铁蒸汽截止阀DN15 20 25 32 40 50 65 80 100

铸钢法兰截止阀J41H-16C25C高温高压蒸汽WCB碳钢锅炉DN50手动100

J41H-16C25C锅炉蒸汽截止阀高温碳钢铸钢法兰截止阀DN25DN50DN100

304不锈钢法兰截止阀J41W-16P耐高温高压手动阀门DN50 65 80 100

铸铁法兰式截止阀 J41T-16耐高温蒸汽手动式阀门开关DN100 150 80

U41S-16高温铸铁铸钢法兰柱塞阀蒸汽锅炉截止阀DN50DN25DN80DN100

远恩不锈钢304国标法兰截止阀J41W-1016/25水高温蒸汽导热油DN100

304不锈钢法兰截止阀J41W-25P耐高温耐酸碱单向截止阀DN50 80 100

WCB铸钢法兰截止阀J41H-16/25C DN40 50 65 80 100- DN500

正品埃美柯302黄铜管道加厚丝扣2分3分高压高温蒸汽截止阀DN8-100

铜截止阀 丝口截止阀 工程 DN15 DN20 DN25 DN32 DN40 DN50-100

铸钢美标法兰截止阀J41H-150LBC300LB600LB高温蒸汽阀门DN80 100

304不锈钢丝扣截止阀J11W-10/16/25/40/64P苏式S型蒸汽阀DN15-100

铸钢法兰截止阀 J41H-16C/25C/40C 高温蒸汽截止阀DN50 65 80 100

截止阀J41H-16C铸钢法兰高温蒸汽截止阀DN32 40 50 65 80 100 125

宇明阀门法兰截止阀J41H-16Q/25Q 高温蒸汽截止阀DN40 50 150 100

304/316不锈钢法兰截止阀J41W -16P高温蒸汽耐酸碱热油DN100 150

J41F46-16C化工耐酸碱腐蚀衬四氟放料铸钢法兰衬氟截止阀DN80 100

304不锈钢日标法兰截止阀J41W-10K日标法兰截止阀阀门DN25 50 100

J41T-16法兰截止阀铸铁铜芯蒸汽截止阀DN20 25 32 40 50 100 寸

304不锈钢法兰截止阀 J41W 16P高温蒸汽切断阀门 DN50 DN80 DN100

铸钢法兰截止阀耐高温蒸汽阀门J41H-16C2寸4分DN200J41H-25CDN100