BX43W/BX44W沥青阀

YDAX47美标压力平衡式倒装油密封旋塞阀

X13H二通压力表旋塞阀

X14H三通压力表旋塞阀

X14W三通内螺纹不锈钢旋塞阀

X43W二通不锈钢旋塞阀

X44W三通不锈钢旋塞阀

X13W二通内螺纹不锈钢旋塞阀

X61F美标承插焊式卡套旋塞阀

YDAOX43轨道旋塞阀

BX43W二通保温旋塞阀

X44W三通全铜旋塞阀