1. con/ecc reducer
2. BW/SW
3 ASME/ ANSI B 16.9 ASME/ANSI B16.11 JIS B2311 JIS B2312 JIS B2313 JIS B2316
  GB12459 GB/T13401 GB/T14383 GB/T 14626
4. ASTM A106B/A53 B DIN
5. can producer according to buyers' requirtment
6. high quanlity  high resistment
7. OD;33.4X26.7~406.4355.6 WH:20,30,40,60,80,100,120,140,160,STD XS,XXS