Goldenest Machinery (Qingdao) Inc. is the earliest enterprise which engaged in the design, research, and manufacture of the husbandry of poultry and livestock. We have the most powerful R&D department and also advanced equipment to manufacture our products. We provide our products to many large scale farms in China and also export our products to many foreign countries. We have 25 engineers in designing and manufacturing auto feeding systems to poultry and pigs, as well as nipple drinking ...