The factories of Spark Coil are those involved in the manufacturing directly and delivering the products from the factories. Under this, the price may be a litter lower than those from the trading companies, and the after-sales service may also be better. The recommendation is based on the production capacity and business scale. Haiyan aijian Co., Ltd.is such a factory. We also have many partner factories to support the large-quantity orders. But please rest assured! The partners process the same materials from the same suppliers and operate the same production facilities, and the after-sales service is provided by ourselves.

Haiyan is a first-class modern enterprise with strength of technology, management and service levels. Haiyanfocuses on providing a variety of best ignition coil for customers. The quality check for Haiyanrolling tool cabinet is strictly carried out. It will be inspected by machines or by visual mainly in terms of board thickness, flatness, warping degree, veneer's paint film, etc. It helps the engine resist cracks and pinholes. Sampling is critical in the product testing. Its design will help simplify mounting operations.

We're dedicated to maintaining and improving the environment. All of our manufacturing processes are engineered to reduce waste, and we use environmentally-friendly materials in our processes to reduce emissions.