○ Development history

▷When the exhaust gas is released externally , Springs applied to Flexible valve will open and close according to the output

▷ The spring for flexible exhaust valve of vehicle exhaust system operates at temperatures of 400 ℃ to 600 ℃. Heat resistance and endurance and flexibility are important.

KOWEL Co. ltd produce nickel alloy spring that satisfying heat resistance, endurance and flexibility and apply it to flexible exhaust valve and produce the products. KOWEL Col.ltd ‘s flexible exhaust valve is applied in many vehicle muffler such as Hyundai, KIA, GM, Nissan

▷ Development and application of Exhaust system application Spring can be changed according to customer request. Also it can be proceed through the person in charge of Sales.