HG/T 20592  法兰盖 BL 450-6 FF RF t=9.150F 16Mn0mc�@

BL450-6 FF RF t=9.150F 16Mn0mc�@

BI 700

WN 65(A)-16 RF S=5

WN150(A)-63 RF S=6

SO 4"-150 RF

WN 65(A)-16 RF S=4

WN150-150 RF Sch40s1=2m

WN40-600 RF S5

wn250-63rfM9c47c8-1 RRF0-Rmn h5808@00 R1RF@4004067 H=19

BL 500-10 RF@R@c4R� bl4FHh80f40S@.5c