PFZL73链轮传动暗杆刀型闸阀 美标暗杆刀闸阀

PFZ673气动刀型闸阀

PFZ973H手电切换刀型闸阀

PZ573H伞齿轮暗板刀型闸阀

PZ243电液联动陶瓷刀闸阀

PZL73H链轮对夹式刀型闸阀

PFZ6S73手气动切换刀型闸阀

PZ773H液动刀型闸阀

PZ643气动梅花单夹式刀型闸阀

Z643TC陶瓷单阀板闸阀

Z644TC气动陶瓷双闸板阀

PZ273TC电液联动薄型陶瓷闸阀