GB/T 12459  异径三通 DN 950×950×200-Sch100TR

DN 200×200×950-Sch100 TR

BL150-100Rj

WN25-600RF sch40sSch40u-0.6

BI 325 rf,s/=3j=59l50(FMSch8

BL65-16 FF00RF27 H750

WN250-300RFb25798pa/RF)-11000-1

PL150(A)-10RFRFB)-1RE0 RF25RFF-25RFch4

WN 80(B)-16 RF6/40sfm /u532

WN80-300RJRjcdmpampampampampamp;