| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2020.0 | 
                        USD | 
                        20191021 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        600.0 | 
                        USD | 
                        20191021 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        470.0 | 
                        USD | 
                        20191020 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2290.0 | 
                        USD | 
                        20191020 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        430.0 | 
                        USD | 
                        20191019 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        270.0 | 
                        USD | 
                        20191019 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        290.0 | 
                        USD | 
                        20191019 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2020.0 | 
                        USD | 
                        20191019 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3290.0 | 
                        USD | 
                        20191018 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        500.0 | 
                        USD | 
                        20191018 |