... of plastics, etc. It is main material of binary acid with four carbons, 1,4-butanediol r-butyrolactone, tetrahydrofuran 5,Packing: 25kgs ... chemical field.3,production capacity Baotie launched our tar process with production capacity of 120,000 tonne/y and crude ... benzene process with production capacity of 80,000tonne/y, with integrated technology of refining coal products. ...