少妇呻吟白浆高潮啪啪69,少妇性欢1一18章,麻豆乱码国产一区二区三区,成人网站免费大全日韩国产,久久久影视文化传媒有限公司

 Upholding such idea of "To get further development by quality products and excellent brand, To get profits by good management" and such principle of "Regulation, Preciseness, Honesty", we now have become a large-scale chemical researching, developing, manufacturing and trading enterprise. There are experienced technicians, complete management system, modern equipment, leading method, precise inspection instruments and complete QC system inside our company, thus our products are well-received and highly appraised by our customers for excellent quality and price. Our main products are Pyrene, Fluoranthene, Chrysene, Phenanthrene, Fluorene, Dibenzofuran, Acenaphthene, naphthalene, Methylnaphthalene and 1,8-Naphthalic anhydride, etc. Moreover, we are the biggest Pyrene & Fluoranthene manufacturer in China. Our service tenet is "Honest business, Innovative business, Quality and customers are number priority", and we scrupulously abide by such norm of " The quality of products is the most important thing" .

 We now have got the certificated of Import and export business and ISO quality system. Basing on such precondition of "Sharing advantages, Mutual benefits, Co-development", we are looking forward to trading and cooperating with customers all over the world. Let's work together for bright tomorrow.