J41F衬氟截止阀

美标截止阀美标截止阀现货,进口美标截止阀

FJ41-25节流截止放空阀,手动截止放空阀

DJ41Y/W 型低温截止阀,加长杆低温截止阀

J11W内螺纹截止阀不锈钢,内螺纹截止阀

J41H/W/Y-10K日标截止阀,进口日标截止阀

J41H精铸截止阀,进口精铸截止阀

J41H-25（带轴承）法兰撞击式大口径截止阀

J44Y高压角式截止阀,焊接角式截止阀

J541W伞齿轮截止阀,气动伞齿轮截止阀

J41H国标截止阀,大口径国标截止阀

DS/J41H-25 DS/ J61H水封截止阀,焊接水封截止阀