激情四射的网站久久婷婷七月丁香|桃色五月天丁香国产综合美女在线|欧洲av免费看青草社区在线观看|亚洲合集一区在线亚洲无码1区电影|精品亚洲中文字幕色婷婷兔兔五月天|高清精品卡二V天堂在线视频|无毒无码av综合色五月天|天天婷婷丁香国产永久无码

Armed with top R&D team, based on rubber industrial technology&frontiers of science and technology, China star established cooperative relationship with domestic and international authoritative research&scientific research institutions such as Qingdao University of Science&Technology, Beijing Research&Design Institute of Rubber Industry, innovation enterprise of University of Oxford, to participate in the products, technology development fully, provide green, energy-saving, Eco-friendly rubber additive products for the global rubber industry.
 

China star has a huge investment every year to involved in the development of new, environmentally friendly, energy-saving production technology and equipment. Currently we have declared 3 related patents and obtained 9 practical new patents.