our main produts is as the follows:Sodium lignosulphonate (HS CODE:3804000090)Calcium lignosulphonate (Used as ceramic additive, concrete additive, water reducing agent)Sodium Gluconate(SG99%,HS CODE:2918160000)Sodium Naphthalene Sulfonate Formaldehyde(SNF, HS CODE:3824401000)so if you are interested in our products,pls contact with us feel freely. we are waiting for your enquiry, and thank you very much in advance.--best wishes,vickyMobile:0086-18162818098Wechat / what&＃39;s app. is availabletel(fax):0086-710-2047586skype:missorange29email: yongchemical#yahoo.comHUBEI RBS CHEMICL CO.,LTDWEBSITE: www.yongchemical.comADD.:No.5 Economic & Technological Development Zone, Xiangcheng District, Xiangyang(xiangfan) Hubei, China