Hi,this is grace from RIZHAO HANZE CHEMICAL CO., LTD in China. We manufacture and export calcium hypochlorite, SDIC, TCCA, SDIC Dihydrate, Cyanurate Acid, PAC...etc water treatment chemicals, we have done for more than ten years in this field. So if you have need, kindly contact with us, we can give you a competitive price with high quality and good after-sale service. Thanks.Skype: lixiaginasales1 AT hanzechem DOT comMob: +86 15063322256Tel: 0086-633-2221813Fax: 0086-633-2186002