| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        550.0 | 
                        USD | 
                        20191010 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3800.0 | 
                        USD | 
                        20191010 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        600.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        580.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3800.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        570.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        490.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        550.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        520.0 | 
                        USD | 
                        20191001 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3900.0 | 
                        USD | 
                        20191001 |