骰宝口诀
     
骰宝口诀 四川快乐12遗漏任5 东北麻将玩法技巧 福建体彩11选5开 香港特选六肖六码100中 四川快乐十二基本走势 25选7中奖号码是多少 北京十一选五*结果 福州麻将有什么技巧 东方6+1开奖软件 欢乐斗牛下架原因 重庆幸运农场开奖查 台湾麻将技巧 河北十一选五官网下 七百搭麻将技巧 福建22选5走势图500期 四肖三期内必出一期中
 
         Light stabilizer series
         UV absorber series
         Polyurethane
         Custom Products Series
         More
 
  About us

Established in August , 1999 , Yantai Yusheng Chemical Co , Ltd ( Yantai Yusheng) is a new high-technology enterprise mainly engaged in producing plastic additives and polyurethane additives . The company is located in Laishan District , Yantai City occupying an area of 20000 sqm with a fixed asset of RMB 50 million yuan . The annual income reaches above 100 million yuan . In order to get better development , Yusheng has successively established the scientific research and development cooperation with Shandong University , Qingdao University and Yantai University . At the end of 2013 , the company has invested 30 million yuan in scientific studying . Now our company has one modern production building over 1100 sqm , lots of advanced production equipment and strong technical strength . New advanced productions are being invented every year . The company ‘s concept of development is based on transforming and improving traditional field and increasing development and growth of new products with the guidance of scientific development . Starting point and then beyond , to create a new history of production and speed on building a world – class enterprise featured of " Environment Protection and Green ."
Now Yantai Yusheng has gotten the certificate of ISO 9001 quality management system and ISO 14001 Environment management system .
 

四川快乐12遗漏任5 东北麻将玩法技巧 福建体彩11选5开 香港特选六肖六码100中 四川快乐十二基本走势 25选7中奖号码是多少 北京十一选五*结果 福州麻将有什么技巧 东方6+1开奖软件 欢乐斗牛下架原因 重庆幸运农场开奖查 台湾麻将技巧 河北十一选五官网下 七百搭麻将技巧 福建22选5走势图500期 四肖三期内必出一期中
四川快乐12遗漏任5 东北麻将玩法技巧 福建体彩11选5开 香港特选六肖六码100中 四川快乐十二基本走势 25选7中奖号码是多少 北京十一选五*结果 福州麻将有什么技巧 东方6+1开奖软件 欢乐斗牛下架原因 重庆幸运农场开奖查 台湾麻将技巧 河北十一选五官网下 七百搭麻将技巧 福建22选5走势图500期 四肖三期内必出一期中