HG/T 20592  法兰 SO 150-16 MMB=РҹТ¶1pam95 /1=3 crf500-s/@47023FFF K=

SO150-16mMB=РҹТ¶1pam95 /1=3 crf500-s/@47023FFF K=

3 G 350-1.0 δ0=≥52 D=135

BL500-600Fm0-

WN 250(B)-40 RF S=6

PL450B-6RF BB=4.6=890 C=RF=3= R

3 G 350-1.0 δ0=≥52 D=135 K=1

WN100-16RF B=609 H=489F1.0 R

WN 500-600 RF Sch80S100(B)-16

PL450B-6RF