GB/T 12459  等径四通 DN 1300-Ⅱ-10CRSg5-4 FM5FRF

DN 1300-Ⅱ-10 CRSg5-4 FM5FRF

BL 150-1500 RJch4ScFF RF5 RF50RF h10Smpq5305/data/data

BL 600-10 RF96 R-S=2.100R

SO250-150 RF Sch40F162.5 RF1f5000-/R

WN25(B)-63RF D3=2720 δ

WN125(B)-16RFF6=15305/data15

pl50-16rf´40S2rfs=465-

wn80(B)-150 Rf S=6C

pl4