HG/T 20592  法兰 TH 20-16 RF/6/0+

Th20-16 RF/6/0+

so 100-16rf.25

WN150-150RF SCH40mpam

SO 20-1500 RF300 R1-64061802.5/

1 RF 500-1.6 δs=8mpampquotRF300R

WN24"-150 RF Sch40S Sch40S1=37rfFS3rfRF6800Sch402.53S=6FFRFs0

SO 900(B)-25 RFRFrfRF S=105 FM=5 S=50pl4-300R

2 RF 1100-1.0/108-