GB/T 12459  等径三通 DN 400-Sch10STS

DN 400-Sch10S TS

bl50-16rj9f0-R rfu00c

WN 300-150 RF Sch40S

BL20-25 M

BL500-40FF4 S10

WN 25(B)-25 FM S=3

BL250-2500 RJ

a105 hg SCH6016r

WN200-300RF

BL20-25 FM310 RF S=4Frf sch40 RF Sch4000rf6FmSch40160M(A)-1BRFS;-1500 RJ50 RF Sch400(RF(730 RJ�6data