current position:


Jinhua Sumsoo Autoparts Co., Ltd is specialized in manufaturing stainless steel exhaust pipe trims for different kinds of cars. Based on the drawings or samples from customers, SUMSOO provides highy mechanized assembly line production in large quantities. Exhaust trim is a sort of subdivision, as a car accessory, however, SUMSOO insists on the highest standard, ranging from material selection, processing technics, quality checking to packaging, each of which is of strict operation specifications and standards. SUMSOO commits itself to the benchmarking enterprise of the exhaust system of cars all the time, researching, developing and producing exhaust mufflers of the superior quality. Whether delivering directly to you or to your Tier 2 supplier for further mounting, each product is guaranteed to gain at least three times' overall checking; no defective items are allowed to leave the factory.

SUMSOO cooperates with customers from home and abroad all the way to work out the best solution as per customer's requirement.

Our muffler cutters adopt high precision mirror polishing, whose surface is as bright as a mirror.


We know well software like CAD and UG. After confirming the data analysis and demonstration, we turn to the mould making.

Mould Production

With many years' experience in mould making, we usually adopt high-end steel like DC53, after the fact that the mould can be applied to the mass production whose fee is reduced to its minimum in the meantime is ensured.

Exhaust Finisher Production

All trims are made from thin stainless steel (SUS304) sheet metal.