WHY LONGDING： 1) More than 30 sets of production lines for casting, extrusion, anodizing, powder coating, thermal break, electrophoresis, PVDF, deep processing, etc.   2) Strict quality assurance and inspection measures will never let any imperfect products be out of our company. 3) Awarded various honors, such as "National Quality Exemption", "Famous Brand", etc  by the government and enjoy a good reputation among overseas markets. 4) Strong R&D team and over 130 national patents. 5) 23 years OEM ODM factory experience; 6) Made in China gold and audited supplier ; 7) Most advanced equipments and production lines to make sure your project with excellent quality in very short time; 8) Business contract and non-disclosure agreement are always ready for you; 9) Customers can easily reach us rapidly(24*7 Hours Available); 10) Long-term trustworthy manufacturer of over 200 corporations in the world; 11）Small order is accepted