GB/T 12459  等径三通 DN 1400-12TS0020δ1=20

DN 1400-12 TS0020δ1=20

WN 25(B)-25 RF S=40 RJ Sch60A0 Sch81ampa800a3

20615BL150-300 RF/pampam

WN 150-150 RF S=10 20Ⅲ

47021 rf450-1.00100

5 RF 1450-2.520δ0=1020

BL 20(A)-16 TG=126 dn6150R

wn80-10 rf s=52.5=2.520615-

BL150(A)-25RFŽ�

wn50-300rf h