Beijing HuaMeiHuLiBiological Chemical
Telephone010-56205725
Websitehttp://www.huabeibiochem.com/
Henan Aosman Biotechnology Co., LTD
Telephone0371-0371-61318675 17719817155
Websitehttp://www.osmanbio.com/contact.html
Shanghai wencai New Material Technology Co., Ltd.
Telephone 15721586846
Websitehttp://wencai-nm.com/
Honest Joy Holdings Limited
Telephone755-36694831 +8613798234863
Websitehttp://www.diethyl-maleate.com/
Hubei Jusheng Technology Co.,Ltd.
Telephone18871490254
Websitehttp://www.hubeijusheng.com