J641HJ641H-16C气动截止阀

YJ41WYJ41W-25P不锈钢氧气截止阀

DSJ41H/NKJ41HDSJ41H水封截止阀

DWJ41HDWJ41H-16C德标波纹管截止阀

GWJ41H国标波纹管截止阀

J41H/J41WJ41H-16C铸钢截止阀

J941H电动截止阀J941H-16C电动调节截止阀

JS45Y/J545YJS45Y/J545Y料桨阀-截止阀

J41HJ41H-150LB/300/1500LB美标截止阀

J41H日标截止阀 J41H-10K/20K法兰日标截止阀