coil plug During the production of coil plug, Haiyan aijian Co., Ltd. divides the quality control process into four inspection stages. 1. We check all incoming raw materials before usage. 2. We perform inspections during the manufacturing process and all manufacturing data are recorded for future reference. 3. We check the finished product according to the quality standards. 4. Our QC team will randomly check in the warehouse before shipment.
Haiyan coil plug It is part of Haiyan brand, which is a series marketed by us with great efforts. Almost all clients targeting this series make positive feedbacks: they are well received locally, they are user-friendly, no worry about the sale…Under this, they record high sales volume every year with high repurchase rate. They are excellent contributions to our overall performance. They even fuel a market movement focused on related R&D and competition. emission coil,discount ignition coils,vehicle coil.