RES is an auto exhaust system manufacturer specialized in research, development, production and sales .It covers an area of 8000 square, owns more than 40 units main advanced mechanical equipment and machine which cost up to millions of money. AOOAS implements modern management, forms product design and development, mold manufacturing and production, integration of the muffler production line. Its products include titanium exhaust, stainless steel exhaust, variable valve exhaust; it has a complete product line, and keeps abreast of market trends and the development of variable valve exhaust and titanium exhaust, has a good reputation in the industry. RES exhaust always keeps innovated to meet the needs of customers , with a keen and unique insight of the industry, to provide consumers with high products and best services. AOOAS committes to create a more excellent exhaust brand, we sincerely invite you to cooperate and win-win.