性做久久久久久久久,国产欧美精品一区二区色综合,国产一区二区精品久久岳,亚洲精品久久激情国产片

     
Petroleum mixed xylene
PDF 0
The product is obtained by prehydrogenation of petroleum light fraction, catalytic reforming and separation.
Product characteristics
Sinochem Holdings provides two kinds of petroleum mixed xylene, which are 3 ° and 5 °. The product has high purity, low bromine index, and very low copper / lead / arsenic content, which is a good raw material for PX plant.
Application instructions
It is mainly used as chemical raw material and solvent.
Application instructions
Energy and Chemicals
Construction
Textile and Leather