J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Sichuan BaiPeng Biotechnology Co., Ltd.
Telephone028-65791793 18140026355
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList20202/0.htm
ShangHai Book Chemical Co., Ltd.
Telephone15001988657 15802146997
Websitehttp://www.bookchemicals.com
Wuhan Boye Technology Development Co., Ltd.
Telephone027-81625225 15377010747
Websitehttps://www.boyechemicals.com/
Shanghai Aladdin Biochemical Technology Co.,Ltd.
Telephone +86-18521732826
Websitehttp://www.aladdin-e.com/