中韩高清无专码区2021曰_色翁荡熄又大又硬又粗又视频图片_波多野结衣乳巨码无在线观看_国产91福利在线播放_国产人妻人伦精品_马来西亚潜水天堂_黄色免费网站下载_免费看黄网站黄污污污热门软件_小莹客厅激情46章至50章视频

Dongying City Longxing Chemical Co., Ltd is a chemical-based corporation, located in Dongying City, Shandong Province. Here is the Yellow River Delta, which is beautiful and rich, with convenient transportation and complementary economic circle. Adjoining to Qingdao port, China's second largest seaport, facilitates the transporting of goods. All the above provide convenience for our rapid development. The company specializes in the sales of chemicals, with complete chemical qualifications. Over many years' experience and perfect service bring us many customers and good reputation.
Now our products cover basic inorganic and organic chemicals, such as methylene chloride,aniline, propylene glycol, dimethyl carbonate, propylene carbonate, caustic soda flakes and pearls, trichloroethylene, perchloroethylene, N,N-dimethylformamide. They are widely used in pharmaceutical intermediates, resin, rubber, plastics, sponge, cleaning and other industries.
Company philosophy: Credit first, Mutual development. All the staff are dedicated to the pursuit of the perfect service and corporate image, superior quality and good price to make the business easy for our customers.
We welcome your esteemed customers to cooperate with us.