GB/T 12459  弯头 DN 200-Sch40S90ES δ0=1650-2

DN 200-Sch40S 90ES δ0=1650-2

PL400(B)-10 RF C=12 L=

PL80(B)-16 RF RFf121 rf1S=8-1Ffu0=18.26F0

so40(b)-10 fmg20615

BI 406 RF SSH/T¦�501Bam0-)- Sch5sF S=1.2-200

WN200(B)-100 FM S=≥1016 RF5R5@00F6@RJเ�RJ Sch80SAmpampamp

BL 500-25 RF

WN50-1500R