煤安标志认证申请流程

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                                             申请

                                                  ↓

                                              初审

                                                 ↓

                                          技术审查

                                          定型检验

                                                 ↓

                                申请单位消化技术文件

                                                 ↓

                                          现场评审

                                                 ↓

                                         抽样检验

                                                ↓

                                         综合审查

                                                ↓

                                  发放安全标志证书

                                                ↓

                                             公告

                                               ↓

                                        省局备案