GB/T 29465  法兰 C-G 2150-0.6/20δ0=8S-C=5-16 rf s

5 CG 2150-0.620δ0=8S-C=5-16 rf s

WN100-1500 RJ SH/pampampampampampampa

bl50-16RF d=1000-RF04000301100654-1

WN350(A)-16 RF S=≥4.8

SO 450b-10rf5FFpch1 Y=6F Sd=ch61

WN32(B)-16 RF10 B00-9(T20592-

PL25(B)-25 RF D=140sch8016 RF S05rum.h

WN250-150 RF SCH