HG/T 20592  法兰 PL 150-16 RFJ D5.f0RFB)-RF S=3.5 500-20ht

PL150(a)- 16 RFJ D5.f0RFB)-RF S=3.5 500-20ht

SOH RF 20K A 40A-15.f0RFB)-RF S=3.5 500-20ht

DN 200×200×150-Sch40 TR12A=5h=rf1200F0

PL25-150 rfFJk=1g20680 mtWN2

jb=t81-94pl150-16rf=23.5 rH4SRH150 Cxs233.ph4

PL60-6RF97m9ampamp-150 FF S

wn600-600 rf sc