GB/T 12459  弯头 DN 80-Sch4090ESS=82-150 rf0 rf shrft

DN 80-Sch40 90ESS=82-150 rf0 rf shrft

SO200-16RF A=168.3

BL 40-300 fm0rfF0RF Schh40mpquoth8-

PL125(B)-16 FMh40-FB)-16

WN 500-100 RF�Sch40ch80SFs=7@=401scS

3fm900-2.5bh4

47023 fm1500-4.0/144-2=d1¬sc700f/@47023 rf1

PL65-6RFdn=400F

pL150(B)-10 FF/pn