HG/T 21574  吊耳 LP-31

LP-31.0 S=6F S=616 1200-4.0-16â 50

BL 1 1/4"-150 ST

SO 20-150 RF

PL 65(A)-16 RF

BL 65-16 RF

BL100-25FM2aRF=1C=2080300 RFcFa/300

B WN 32"-300 RF B=Sch80S

BL 50-16 RF

WN50(B)-25 MM SchHG20FSCH40SF-BRFr4.5n20680a2221@0@6RB/FA RFD0916rff8F

WN