NB/T 47022  法兰 FF 3000-0.6/208cF´65=40.90.

2 FF 3000-0.6208cF´65=40.90.

BL 600-300 M

PL 50(A)-25 RF b=3

SO 600-300 M

WN 150(B)-16 FM S=4.5

WN 200(B)-16 FM S=4.5

DN125-PN16 PL RF I

WN 25-300 RFВjpg Sch1600 FF0000O0@00 S

PL 50(A)-25 RF

WN25(B)-16 M δ=6RFS�32j&0/50 R2RFGF S000SR@RFmpwdh rf8