HG/T 20592  法兰 WN 100-40 RFM40B)/F S=128.6+0.5

WN100-40RFM40B)/F S=128.6+0.5

PL150(B)-10RF=3501RF/tmM5RF6�╘п╠Б�

JWN100×150-150 RF Sch40S0/633-1070a/150 rf

A 120000-1.6h40f1000-mpampamcrfS

WN25(B)-16 FM6 RF M5RF6�╘п╠Б�

wn20B)-100 FM5/F5WN200-0h40pampa

WN 500-600 RF S=34�п�