GB/T 12459  等径三通 DN 200-8TS S=50 90ES1m��0/12

DN 200-8 TS S=50 90ES1m��0/12

WN 200(B)-16 RFS=5006.040s3rf213Fb)-16

PL 450-6 RF(b)-02RF80m00Sd=165(b)-1

WN50-150 RF

3 m 450-6.4 δ0=3

BL 100(B)-25 FMS

PL100B-16RF b=3

WN20-40RF,Sch40Sh1/6RF60h40 H0-fN120-00-300

BL 500-6 RFh8RFҗа№Җа

DN15-PN