HG/T 20592  法兰 PJ/RJ 300(B)-10 RF

PJ/RJ300(B)-10 RF

PL100(B)-16 RFf25

3 fm 1000-1.6/4-1850L-

WN250-600RF B241FB)-1б⌠п╟п│п╟п▓п╟п└п╟б░п╟п

SP3BB=5RF

DN600-PN10 PL RF Ⅱ؛ RF001950F10M

pl 50-16RFs=3 S50-2.5 δ0Scp

WN100-300RFSCH40-16 RF0-000-150 RF50 rfR