Dear sir or miss: Our company supplies the series of heparin products,such as:heparin soudium,heparin calsium,chondroitin sulfate. Of course,our workshop has been approved by GMP in September of 2002,and our products have been exported to Germany,Italy,Russia,Uruguay and so on.And it has a good business credit. If your company has some interests.please contact me as below :Awen zhaophone :86+0311+5110316FAX: 86+0311+5262702