Guangzhou Koller Refrigeration Equipment Co., Ltd is an integrated manufacturer that specialized in the research, design, manufacture and sale of refrigeration equipments. Koller has 30,000 square meters of factory space, more than 300 employees, including senior technical R & D team, professional sales team and authoritative expert advisers. Koller was established in 2004, through the insistent challenge and progress over the past ten years, Koller has become a famous manufacturing ...