hengxinda

Dephosphorization agent 1.good dephosphorization effect 2. operate easily 3.large stock 4.competitive price Dephosphorization agentWith the development of society and the progress of science and technology, various fields put forward more and more strict requirements to the steel quality, and require the impurity in the steel no more than 100ppm, namely pure steel, and also it require the content ...