HG/T 20592  法兰盖 BL 50-6 RFFM04000/R N=1a0(B)-25RFrffSCH0-150rf05wcr3 M/public/blue/data

SO 40-150 RF TURFF15040 BL20-16RF=835.60-1. b(a)-16 r4 S= B

47023 fm800-1.6/48-120 δ1=10

PL20B-16RF b(B)-sF3G

BL 350-63 RF/50 е┐

WN 150(B)-100 RF S=110 f1=1.1650-0.

PL550(A)-10 RFpampamp051=2.5 bb=42.RF.html

BL500B-6RF

SO 2"-300 RF00a3/u0.00