Hot point, 1. special shape accroding to your requirements 2. advanced processing technology 3. ... 1350 1370 1385 1435 1445 2001 2002 2003 2004 2005 2006 2007 2008 2011 2014 2017 2018 2021 2024 2025 2030 ... ,H12,H16,H18,H19,H22,H24,H116,H32,H36,H321etc. Special aluminum pipe