GB/T 12459  异径三通 DN 800×800×550-Sch140TR

DN 800×800×550-Sch140 TR

JWN 300×400(B)-16 G S=3

WN 400-16 T61. ÃÆ9mpampamF2c-r;59r80-40RF30/0/=68

WN 100-300 RJ0RF50

WN 250(B)-16FM

WN100-150RF SCH1.F S=12-

PL15-16RFFsRF32

BL25(B)-25T

WN20(B)-160 M S=60-2.5/90-19.645F1000-0.613fs=5.5FF S=

WN 5