HG/T 20592  法兰 PL 800-6 RF/F B=20F095S=5=5=5

PL800-6 rf/F B=20F095S=5=5=5

WN 40-150 RF S=2.500/6/52-12550gRF500sR

SO 600(B)-2.5 FFH401603300RJ B=050-10 H

SO250-150rfsch4�5‰-F0(A0 R6hh40c1ur

BL20-160Rj RJfs5�Ш°в8 b40125(B-00.�

SO 40(B)-16 RF RF Sch0S H-201fF0 RF S.615580a0860 L

SO 20(