Founded in 1997, XZL Chemicals Co., Ltd. is situated in Qilu chemical industry park in Zibo in Shandong Province. Now, XZL is a large-scale pharmaceutical chemical enterprise specializing in the manufacturing biobuffer series. With modern equipment, inspection facilities and leading method, we can offer you GMP standard products; relying on experienced technicians, complete and well-operated quality management system and customer service system, and market-oriented sales and operational system, ...