GB/T 12459  弯头 DN 50-4180EL

DN 50-4 180EL

BL40-300 T=17 f1=3 AA= A5RFm1100-WN150A-1

WN 80-150 RF S=7.62RF B=66f8177606b

SO 6"-150 RFpam

WN 1 1/2"-150 RF Sch10SRF Sch80F Sch80S

B WN1800-300 RF/005 r4.)-2/4240sF RFFJrjs)-2ef/ H=1

WN80(B)-25 RFB2=35 wn50(b)

SO250 -150F