Qingdao is one of China's unique tourist and ho1iday resorts,with a very beautiful scenery and comfortable climates．Red tiles,green trees，clear seawater,and blue sky all add to Qingdao's beauty. So Qingdao is admired as Oriental Switzerland．Qingdao HuahengSubsidiary Agent Factory,ocated in this beautiful seaside city，enjoys special advantages． Qingdao Huaheng Subsidiary Agent Factory specialized in the production of rubber vulcanishation accelerater, DZ(DCBS) and anti-aging agent DTPD(3100). Now it has an annual DCSC(DZ) output of 2000 tons and anti-aging agent DTPD(3100) 1500 tons and the quality is good and price is rational. It was authorized by ISO9001 ： 2000 International Quality System in 2001. Our factory possesses advanced production technique and perfect insp..