Haiyan aijian Co., Ltd.has a complete quality management system for producing spark plugs and coils . The well well-versed and trained quality control personnel control the raw materials and finished products. And we have a quality control laboratory which systematically carries out the main tasks indicated below: Each test and analysis performed is recorded in detail. Develop a report for each product that is accepted or rejected. Samples of each batch of raw materials and finished products are retained for further reward assessment and control. Assess the stability of raw materials and products. After making the necessary controls and reporting the reasons for the return, the recovered product is recycled and reused.

Haiyan is a professional manufacturer of tool cabinets & chests. The strength of our enterprise is founded on our experience. Haiyan's main products include China ignition coil series. Its quality is of high quality, meeting numerous needs of customers. The product is fully applicable in the most practical parts of our life.

Our philosophy is "Honor the contract and keep promises; Searching for development with high quality; Serving guests with credibility". We are eagerly looking forward to cooperating with customers.