GB/T 12459  弯头 DN 80-Sch40S45EL5050 RF Sch4RF S0-1

DN 80-Sch40S 45EL5050 RF Sch4RF S0-1

WN80(b)-160 M S=11.-0-1

SW 25(B)-16 RF0S RC70810sch0N

WN 450-150 RF Sch10S S=5=1uأ�

WN 125(B)-25 RF S=660ampampampamp

47021 FM400-1.6/34-95=6S

WN 400-150 FF A=406F500ЈЖ’Гў

pl150(b)-16 rf 2件9ss

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