单（双）冲洗旋塞阀 美标压力平衡式倒装油密封旋塞阀 X43F美标卡套软密封旋塞阀 X43F德标卡套软密封旋塞阀 BX44W沥青专用旋塞阀 X943F电动衬氟旋塞阀 X43H法兰美标提升式硬密封旋塞阀 XL343F不锈钢偏心旋塞阀 X47W软密封偏心旋塞阀 XZ43X轨道式旋塞阀 X47W油密封旋塞阀 X43F46衬氟法兰旋塞阀 X14H三通压力表旋塞阀 X44W三通不锈钢旋塞阀 X44W三通全铜旋塞阀 X44W三通铸钢旋塞阀 X44T三通铜芯旋塞阀 X44W三通铸铁旋塞阀 X43W二通不锈钢旋塞阀 X43W二通全铜旋塞阀 X43W二通铸钢旋塞阀 X43T二通铜芯旋塞阀 X43W-10T二通铸铁旋塞阀 X14W内螺纹不锈钢三通旋塞阀 X14W-1.0T三通内螺纹全铜旋塞阀 X14T内螺纹三通铜芯旋塞阀 X13W不锈钢内螺纹二通旋塞阀 X13W-1.0T二通内螺纹全铜旋塞阀 X13T二通内螺纹铜芯旋塞阀