GB/T 12459  弯头 DN 150-3.590EL S=4 S=

DN 150-3.5 90EL S=4 S=

PL 250-16 RF D=404 C=28 f1=3

pl200(b)-10rf S=5

BL 250-6 FF

BL100-300RF500-1.080m000

PL200-16RF

SO 1 1/2"-150 RF

WN 40(B)-16 M S=3p

PL 400(B)-6 RF.

WN 150-300 RF Sch80S9T4=RF00-2.5/60-120 δ=40 H=110 S=12 c4fŽf4663.5FFSIL