HG/T 20592  法兰盖 BL 50-100 RF)-16 RFpampa

BL50-100RF)-16 RFpampa

47023 M650-2.5 δ=50 H=11914FF/40S=3

SO 400(B)-16 RF/6156000 RF S=188.5-16RRF

WN20-1500 RF RFF S=10B)-16rF Schr17NiscFMS=2F

B WN800-150 RF SCH40S33M Sc hg

3 CG 600-0.2520δ0=6

PL150(B)-10RF)-10R0 FM(Bh�=7049pa-155 RF0mpampa

W