法兰 BL 500-16 RFRF f02BL5006/48/

47023BL500-16RFRF f02BL5006/48/

WN40(B)-150RF S=45F92.0/70-120-16L3=l21RF S=

3 M 400-1.0 δ0=8

WN RF 10K 65A5/

bl250b-150mfm sch80RF021

WN300-16 RF S=8 rf sch40s=132/

WN500-16RF S=16

bl10-16m/

wn25-40 rf ,hg/0R48 s=1)-09钢

WN15B-40RF16000480L600-6