锻钢闸阀

Z941H电动法兰碳...

锻钢截止阀

锻钢止回阀

锻钢“Y”型阀门

锻钢低温阀门

Z541H齿轮高压闸...

锻钢延长阀体阀门

Z441H正齿轮传动...

Z941Y 电动铬钼...

H61Y-200/2...

Z41H/Y/W锻钢...

H41H高中压法兰碳...

J41H高中压法兰碳...

Z41Y高温高中压法...

J65Y-P(54)...

J461Y-160/...

J61Y-160/3...

J61Y-200/2...

Z960Y-160 ...

电动焊接闸阀 Z96...

RVEX电动弹性座封...

RVCX暗杆弹性座封...

RRHX明杆弹性座封...

JY541W-25T...

J541H伞齿轮截止...

液控自动闸阀Z741...

QY347F-40P...

H41W 40P(R...

止回阀是能自动阻止流...