GB/T 12459  异径三通 DN 500×500×65-Sch100TR

DN 500×500×65-Sch100 TR

PL150(A)-10 RF

pl 40(a)-25 rf BSch

WN150-300rf sch

SO65-150 RF B FM S=12FS=1(

hHG/@WN150-300 RF0S0-0.25/so80MMJ50-0.6116FM00

SO 65(B)-16 FFF SCH14024.560mfs=6/data/src/haibo.jpg.5 n420FH20δ0=20RF500. scS S0RS

SO 3"-1