GB/T 12459  异径三通 DN 700×700×200-Sch40STRJ63 RF D=375

DN 200×200×700-Sch40S TRJ63 RF D=375

21520pl10(b)-10rfr

WN80-150 RF Sch40 S=/ Schch=86-2

bl500(a)-6 rf.N100(B)-40RF S=884-16

pl50(b)-10 rf b1=52-1025-16 rfFFFf

BL25-100 FM740jm-900

wn50(a)-10 rf0-150 R RFRFc-10-150 r.

WN80-150 RF Sch8000050 RF25F