| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        420.0 | 
                        USD | 
                        20190301 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        440.0 | 
                        USD | 
                        20190301 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2210.0 | 
                        USD | 
                        20190222 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        400.0 | 
                        USD | 
                        20190221 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        760.0 | 
                        USD | 
                        20190219 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        5130.0 | 
                        USD | 
                        20190218 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        400.0 | 
                        USD | 
                        20190217 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        760.0 | 
                        USD | 
                        20190217 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2760.0 | 
                        USD | 
                        20190216 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        320.0 | 
                        USD | 
                        20190215 |