GB/T 12459  弯头 DN 150-Sch4090EL-16 R

DN 150-Sch40 90EL-16 R

WN 200-150 RF Sch80S S=9

PL400B)-40RF

IF 100-16 M

WN48B-40M500r.3nbsp

WN 200-300 RF

WN200(B)-10 RF

BL 8"-600 RJ

WN 15-900 RJ S=3.

IF 80-16 MSC0f10p65-125F S=4-150RFMb)-16 rf25 rf s=51104 R= δ1= δ0= DN= D3= D1= D= δ2= F