GUANGZHOU HEARTEN AUTO PARTS CO,LTD. places great importance on raw materials used in the manufacturing of ship engine parts-diesel engine piston. Each batch of raw materials is selected by our experienced team. When raw materials arrive at our factory, we take good care of processing them. We totally eliminate defective materials from our inspections.. With the rapid globalization, delivering a competitive HEARTEN brand is essential. We are going global through maintaining brand consistency and enhancing our image. For example, we have established a positive brand reputation management system including search engine optimization, website marketing, and social media marketing.. At HEARTEN AUTO PARTS, we offer expertise combined with personalized, one-on-one technical support. Our responsive engineers are readily accessible for all of our customers, large and small. We also provide a wide array of complimentary technical services for our customers, such as product testing or installation..