| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20860.0 | 
                        USD | 
                        20190101 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        120.0 | 
                        USD | 
                        20190101 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        570.0 | 
                        USD | 
                        20181223 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        4840.0 | 
                        USD | 
                        20181223 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        130.0 | 
                        USD | 
                        20181222 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        170.0 | 
                        USD | 
                        20181221 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3540.0 | 
                        USD | 
                        20181218 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        28490.0 | 
                        USD | 
                        20181217 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        197870.0 | 
                        USD | 
                        20181217 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        28490.0 | 
                        USD | 
                        20181217 |