HG/T 20592  法兰盖 BL 80-16 RF=s=12/-

bl80-16rf=s=12/-

BL 100-16 RF SC

1 FF 500-0.6 δs=6

WN40-300 RF

BL 200-40 G3

BL FF 5K 90A BF Sch1

BL65-150RF=2620 k=5903 b=255/b/

PL100-6RF

WN200-16RF S=8

WN600-300 RF Sch80δ S=20.0= nb12F 4件/S=3.7300 RF Sch80pampampam.04/112-2.0F FM S=1.14Sc¬6Tq