Aluminum sulfate, a widelyused industrial reagents.High quality, low price. Hebei Kaien Trading Co.Ltd Room 1005,21# R&D center building,century road,Handan city,Hebei province,ChinaTel 86-310-15369011712 Fax 86-310-8062511 CERTIFICATE OF ANALYSIS COMMODITY ALUMINUM SULFATE DATE--June 1, 2010MANUFACTURE DATE 10,1,. 2010 EXPIRE DATE--June , 2012 TESTED RESULTSBATCH NOQUANTITY APPERANCE WHITEDATE ...