HG/T 20592  法兰盖 BL 600(B)-2.5 FF t=20 HG/1.0.6J0RJ

BL600B-2.5FF t=20 HG/1.0.6J0RJ

WN50-900 RF Sch40

47023 m500-2.5 δ1=10

SOH FF 10K 250A

PL40(B)-10FF BB=39

LJ 20"-900 SG

PL 32(B)-16 RF b=36FS0�77.5 RF RF--2�6rf20F00RF00-0RF0@RJ-1F/

WN150-2500 RJ

PL200(B)-10 RFF B›– bl 600-15100-16

DN100