GB/T 12459  异径三通 DN 200×200×100-Sch80TR

DN 200×200×100-Sch80 TR

WN 500(B)-16 RF

20592 PL300-16RF/70-1

DN15-Class1500 TH RF

BL 50-16 RFampampa

3 FM 600-2.5 δ0=12

WN 200-40 RF

WN70-150RFSch0-1@0�-R RRF0-F@F=5705rf/8WN250(B)-

WN80(A)-10RF

TH 8"-150 RFpampwd& s-10FBL(S) 65-6 RFBL(S)