GB/T 12459  异径三通 DN 900×900×600-Sch40STR

DN 600×600×900-Sch40S TR

SW 50(B)-16 G5-0.65F D

WN 500-300 RF Sch80S3 n=727 a=711.2 h=124 c=

WN40B-100 FM/16 RFRrf ASME

3 FF 1800-6.420δ

LWN80-1500 FM=40S

PL80B-16RF.0F Sch80SrfF B rf

bl300-10rf(b) g(r

SO40-25 rf-3F S=3-16h60fRF Sc6mpquothg2

so 15