| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        600.0 | 
                        USD | 
                        20191215 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1030.0 | 
                        USD | 
                        20191214 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1000.0 | 
                        USD | 
                        20191214 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        4200.0 | 
                        USD | 
                        20191214 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1630.0 | 
                        USD | 
                        20191212 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        590.0 | 
                        USD | 
                        20191211 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        7170.0 | 
                        USD | 
                        20191211 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        6970.0 | 
                        USD | 
                        20191210 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3990.0 | 
                        USD | 
                        20191201 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3960.0 | 
                        USD | 
                        20191201 |