偏心异径管 DN 50×25-Sch10SRE/

DN 50×25-Sch10S RE/

HG/T20592-2009 BL150(B)-25 FM

PL 150-6 RF D=895 K=840 L=30 n=2/

DN100-Sch40 90EL80RFA-150RFB-63FM RF2300-0.65(B)-16 RF S=3.5-

PL 32(B)-16 RFh40sFh

so50-10 ffch4

A WN700-600GF b=3/2S5)/FF D=1

PL25(B)-6 RF=370.5/125

HHA150080070-16