HG/T 20623  法兰盖 BL 800-150 RFп╟п÷п╒п┴п╟п▒я┌б∙б≤п

BL800-150RFп╟п÷п╒п┴п╟п▒я┌б∙б≤п

pl500-6 ff/F sch40=8

WN100(B)-16 RF/æ s=50/â�

WN180-150RF25/Fu00.025

BL15-600RF0 RF1.0F06 RFr

WN100(B)-63 M S=5¨0/F0 S=200 B/

pl600(b)-10 g/п©pamp

WN 600-63 FFF5

WN 8"-300 RF S=12.