DYM is a highly reliable company. It has years of experience, adheres to strict quality control from raw material selection to shipment, offers a wide product range, has an expert service team for prompt response and support, and is known for its high performance-cost ratio. There are also other reliable manufacturers in China which can be found through referrals, social networks or yellow pages, and they typically have good credits and certifications, and focus on quality, pricing and service.