GB/T 29465  法兰 C-T 550-4.0/20δ0=

5 CT 550-4.020δ0=

WN 15(B)-100 Mh1=7 YHch40-

WN 300-150 rf625SHB´10Rs=10512¦Å“ª=70 H=165/EL C=18 b4mmMS=6S1F-

a 16010rf R15╨▓Γ�25RF=316t RF f1 g SCH4000B16.5 RF S=6t202.10RF6Rrf1001Ã

3 M 1400-4.02009=3 C=b=´=628

BL 12"-900