| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3670.0 | 
                        USD | 
                        20190315 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3560.0 | 
                        USD | 
                        20190315 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        640.0 | 
                        USD | 
                        20190315 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        570.0 | 
                        USD | 
                        20190315 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        550.0 | 
                        USD | 
                        20190314 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        550.0 | 
                        USD | 
                        20190314 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        550.0 | 
                        USD | 
                        20190313 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        3580.0 | 
                        USD | 
                        20190313 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        510.0 | 
                        USD | 
                        20190313 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        540.0 | 
                        USD | 
                        20190312 |