1. LR/SR 45DEG,90DEG,180DEG
2. BW/SW
3.ASME/ANSI B16.9 ASME/ANSI B16.11 ASME/ANSI B16.28 JIS B2311 JIS B2312
JIS B2313 JIS B2316
4. ASTM A 106B/A53 B
5. can manufacture according to custmers'requirtment
6.high quanlity
7.high resistment
8. OD 21.3~1219.2 WH :5S, 10S, STD/40 40S XS/80 80S XXS 120, 160 80, 60,40 10,