| QingDao HongSha Polymer Materials Co., Ltd. Qingdao Hongsha Polymer Materials Co., Ltd is a factory specializing in the production of concrete admixtures and founded in 2003, covering an area of 34,000 square meters locate at Tsingtao city, Shandong Province. Hongsha has 10000 tons of raw ... We are regularly Selling: concrete additives, water reducing agent, snfpcelcl, sulphonated naphthlene formaldehyde, ketone based superplasticizer, sulphamate superplasticizer, polycarboxylate superplasticizer, sodium lignosulfonatecalcium lignosulfonate, sodium gluconate. Member since 1 September, 2015, China - Shandong |