D341W-1C通风蝶阀

Z41H-16C碳钢小口径闸阀不锈钢法兰闸阀

J41H-16/25C小口径截止阀

D343H蝶阀，法兰硬密封蝶阀

BWD343H保温硬密封法兰蝶阀

Q41F/ppl气动软密封PPL球阀

Q41F-16CQ41F/ppl软密封球阀

FJ41YF放空阀FJ41YF

TP41YF阀套式排污阀TP41YF

FJ41YF节流截止放空阀FJ41YF

Q611F气动Q611F三片式球阀

Y43H-16先导活塞式蒸汽减压阀