| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3350.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3640.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        510.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        510.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        530.0 | 
                        USD | 
                        20200511 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        520.0 | 
                        USD | 
                        20200510 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        520.0 | 
                        USD | 
                        20200510 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3580.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3670.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        510.0 | 
                        USD | 
                        20200501 |