【正】 The pharmaceutical sector in China is shifting fromchaotic to standardized in order and hidden to evi-dent in rule. The production is getting more andmor
【正】 PC (polycarbonate) is an engineeringthermoplastic with excellent compre-hensive properties.It has the advan-tages of great strength,hightoughness,good he
In the first quarter of 2007, Chinas petroleum and chemical industry remained up trend in production.Among the 66 types of petrochemical products that have been