Henan Doing Mechanical Equipment Co. ,ltd is a leading manufacturer specialized in edible oil extraction machine,peanut oil extraction machine,soybean oil extraction machine,sunflower oil extraction machine,rapeseed oil extraction machine,rice bran oil extraction machine,sesame oil extraction machine,palm oil extraction machine and other oil seeds extraction machine.Our company service includes：technology design, installation and debugging, technical training, relocation of oil plant, technology reform and turnkey project.