| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        470.0 | 
                        USD | 
                        20200313 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3050.0 | 
                        USD | 
                        20200312 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3320.0 | 
                        USD | 
                        20200312 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        260.0 | 
                        USD | 
                        20200311 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        380.0 | 
                        USD | 
                        20200311 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        220.0 | 
                        USD | 
                        20200311 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1670.0 | 
                        USD | 
                        20200301 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3480.0 | 
                        USD | 
                        20200301 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1730.0 | 
                        USD | 
                        20200301 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        2580.0 | 
                        USD | 
                        20200301 |