J641J641气动截止阀PN16～PN40
面议
J641J641气动截止阀PN16～PN40
面议
BJ41WBJ41W型不锈钢保温截止阀
面议
BJ45WBJ45W型不锈钢直流式保温截止阀
面议
J41H、J41W、J41YJ41H、J41W、J41Y-10K型不锈钢日标截止阀
面议
J41H、J41Y、J41WJ41H、J41Y、J41W型撞击式(带轴承)大口径截止阀
面议
J41H-150LbJ41H-150Lb型不锈钢美标截止阀
面议
J41H、J41Y、J41WJ41H、J41Y、J41W型高压法兰截止阀PN40～PN160
面议
J44Y、GL44H、GJ44HJ44Y、GL44H、GJ44H型高压角式截止阀PN160～PN320
面议
J541WJ541W型伞齿轮法兰截止阀PN16～PN25
面议
NKJ61H、NKJ61YNKJ61H、NKJ61Y型真空焊接截止阀PN40～PN100
面议
J940HJ940H型法兰电动截止阀PN160～PN160
面议
J941YJ941Y型电动法兰截止阀PN16～PN160
面议