The company of DVL are always dedicated in optic and video district which includes research development, production, sales consistently perfect service, concerning Medical products, the armed police, public security, industrial, other areas We carry on important programs national ...

Tianwei Refrigeration Equipment Co., Ltd. is one of the major players in Chinese air conditioning industry, specialized central/split products .It was established 2001, integrating refrigeration equipment production, installation and technical services. We are now an wholesaler for ...