J41H铸钢法兰式截止阀

J11W不锈钢内螺纹截止阀

YJ41W不锈钢氧气截止阀

NKJ61H真空截止阀,真空隔离截止阀

J41W不锈钢截止阀，不锈钢高压截止阀

J44Y L44Y高压角式截止阀

J11T-16铸铁内螺纹截止阀

FJ41节流截止放空阀

美标法兰截止阀

燃气截止阀

J41W、J41Y 不锈钢截止阀

J41H 钢制截止阀