| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20510.0 | 
                        USD | 
                        20191115 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2900.0 | 
                        USD | 
                        20191115 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2590.0 | 
                        USD | 
                        20191114 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20890.0 | 
                        USD | 
                        20191112 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1320.0 | 
                        USD | 
                        20191112 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1320.0 | 
                        USD | 
                        20191110 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        18130.0 | 
                        USD | 
                        20191101 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        18050.0 | 
                        USD | 
                        20191101 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2930.0 | 
                        USD | 
                        20191101 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        12190.0 | 
                        USD | 
                        20191101 |