【Strong concrete agent business】 020-37567751 contacts：Miss Chen

【 To join menber of superplasticizer technology with room temperature synthesis】 020-37567751 contacts：Miss Chen

【 Superplasticizer raw meterial purchase】 400-888-4601 contacts：Miss Ning

【 Raw materials of cement grinding aid purchase】 13922725991 contacts：Mr.Zhuang

【 Conference and Marketing cooperation 】 13922109547 contacts：Miss Chen

【 New technology Cooperation】 13922108541 contacts：Mr.Hu

【 Human Resources】 020-83250468 contacts：Miss Luo