Zhong Wei high-tech energy-saving technology Co.,Ltd. Zhong Wei fine chemical Co.,Ltd is located in the plains of oilfield, which has abundant raw materials in PuWang industrial park areas, Henan province,. The company?s energy resources are enough, and its mainly productions are hydrocarbon refrigerant and the raw materials, which has an annual output of 400000 tons refrigerants and raw materials ( R600a, normal butane, n-pentane, cyclopentane, new international vegetable oil extraction, ...