尊敬的机电商情网用户：

      你们好，本网站因升级需要，从今天18点至周日，网站不能打开使用，周一可正常使用！这段时间给各位带来不便，还望谅解！

                                                                                                                                                     机电商情网

                                                                                                                                                      2015-3-27