HG/T 20592  法兰 PL 400(B)-10 FF�‘ز-1=0 R D=403 b=0Sch40S��@5@0/8)�

PL 400(B)-10 FF�‘ز-1=0 R D=403 b=0Sch40S��@5@0/8)�

WN 3"-150 RF Sch40S

WN 100-300 RF S=14.27h800Р В600rf� SCH4–’60H.50

WN250-300 RF S==410F S=3-1.0 RF B=6650F/C2= 2rf 1JsRF@b70-150

WN 50(B)-40RJ D=185 C=42.1 N=8

bl25-63FMso5/