we can supply various Molecular Sieves from all China factories with high quality and very competitive price, such as 3a,4a,5a,13x for differenct application & Molecular Seive desiccant used for insulating double window glass. If you're interested in it, please don't hesitate to contact me. I assure you of our best services and assistance at all times! Besides, we can act as a representative for your company in China to Correspond & coordinate your transactions as if you're here. Best Rgds, Lin cheng gong LIAONING HUIMING INTERNATIONAL CO.,LTD. NO.2 TANGSHAN STREET,DALIAN CHINA.