中文版English

Joy Chemical is a professional manufactirer which emphasis on research and production of
L-Theanine.Currently,our plant...

L-theanine, also named N-ethyl-glutamine, with CAS number of 3081-61-6 and formula of C7H14N2O3, is a amide compound in white or off-white powder...

???????Tel:+86-570-3881022
??????Fax:+86-570-3881021
?Mobile:13305705058(Mr.Fu)
?E-mail:sales@www.clinicaveterinariadacovilha.com
????MSN:yijun_fu@hotmail.com

Copyright © 2012 All Right Reserved.  ZHEJIANG QUZHOU JOY CHEMICAL CO.,LTD  浙ICP備12024729號

欧美又粗又大一进一出,91伊人久久大香线蕉,久久r视频只有精品,亚洲免费久久