GB/T 12459  异径三通 DN 750×750×20-Sch20TRFr ST Sch6

DN 20×20×750-Sch20 TRFr ST Sch6

1 RF 1100-1.0r5/´1RF

WN 40-600 RF Sch80r0H/5f191 aa=90.0 δ

WN 600-600 RJ Sch60Sch80s16 R

47065.4B3

WN50-150 RF SCH10

SO 6"-600 RJ

SO 150B-16 RF b=3

WN 250-25 FF5 K=4F6 D

BL 200-16 RF RF16 s‚¬Ã0(.6.5 f300