MERTOP RACING , owning one subsidiaries of Hangzhou Auto Auparts.Co.Ltd specializing the design and manufacture of exhaust systems
for aftermarket and modified market applications. The company is equipped with 14 bending machines, 3 of which are CNC servo motor
tube bending machines that are capable of bending stainless steel tubes with diameters up to 5.5 inches, and possesses laser
cutters, water jet cutters, cyber-welders, CNC production centers, CNC grinders, millers and other hydraulic machines, with an
annual production capacity of approximately 120,000 sets.