不卡无码人妻日韩av免费_亚洲一区二区高清在线_中文字幕第二页无码av_少妇av中文字幕_日本国产在线看片_国产熟女精品视频国语_亚洲VA中文字幕无码毛片_欧美成人一级麻豆_亚洲欧美制服诱惑_啊宝宝的腰好会扭再叫大点啊哈

At present, STROWIN has set up and owned Beijing Strowin Biology Science and Technology Co, Ltd. in Beijing Shunyi district and Shandong Strowin Biotechnology Co, Ltd in Taian,Shandong Province as two subsidiaries. STROWIN independently researched and developed more than 20 kinds of single enzymes and series of compound enzyme products. As two main production bases, Taian and Beijing Shunyi companies produce all kinds of enzyme products and annual output is around 20000 tons.