In Hunan, new export orders for smart watches, bracelets, car touch screens have increased dramatica...

    PA6 Chinese name polyamide, English name (abbreviated as PA), is the main molecular chain contai...

Caustic soda in the water treatment industry has been widely used as neutralizing agent, various sal...

1 production of paper pulp and cellulose pulp;

2 used in the production of soaps, synthetic detergent...