J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Wuhan Chemduro Pharm Tech Co. Ltd.
                            
                            Telephone18040571231/1402788087 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16292/0_EN.htm
                         
                        
                            
                                Beijing Qinling Mountains Pharmaceutical Co., Ltd.
                            
                            Telephone010-61241352 18901327973
                            Websitehttp://www.qlmed.com/
                         
                        
                            
                                Hangzhou Jinghao Biotechnology Co., LTD
                            
                            Telephone17513242016 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1421058/0_EN.htm
                         
                        
                            
                                Beijing Qinling Pharmaceutical Co., Ltd.
                            
                            Telephone010-61241352 18901327973
                            Websitehttp://www.qlmed.com/
                         
                         
                            
                                Shaanxi Dideu Newmaterial Co., Ltd.
                            
                            Telephone029-63373950 17392213970
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1184346/0_EN.htm
                         
                        
                            
                                Shanghai Yifei Biotechnology Co. , Ltd.
                            
                            Telephone021-65675885 18964387627
                            Websitehttp://www.efebio.com
                         
                        
                            
                                Biosynth Biological Technology (Suzhou) Co Ltd
                            
                            Telephone 51288865780
                            Websitehttp://www.biosynth.com
                         
                        
                            
                                Santa Cruz Biotechnology Inc
                            
                            Telephone021-60936350 
                            Websitehttp://www.scbt.com
                         
                        
                            
                                Watson Biotechnology Co.,Ltd
                            
                            Telephone+86-18186686046 +86-18186686046;
                            Websitehttps://www.chemicalbook.com/manufacturer/cnwhwatson/