anhui fengyuan annual production of 3,000 tons of polylactic acid project pre-approval announcement
latest news: polylactic acid is a new type of environmentally friendly biomass material. it is a kind of biopolymer material made of lactic acid as raw material through polymerization and other reactions. its production energy consumption is higher than that of petroleum. the energy consumption of synthetic polymers produced as raw materials is 30%-50%. under…
