Coal product quality and result of national supervison and spot check;

State supervision and spot check are powerful measure to supervise products quality.

Summary of sampling every month and report existing problems were made.

The quality selective examination results for micro-permanent DC motor products in the year of 2001 were summerized in this article.

This paper process classification analysis to the data of the selective examination to the product quality of the mechanical half-automatic strapping machine and vacuum packaging machine, tally up out the common problems of current·packaging industry in our country(for reference).

This paper process classification analysis to the data of the spot-check to the product quality of the vacuum packaging machine,tally up out the common problem of current vacuum packaging industry in our country.

To keep the quality testing and spot checking fairly,justly and openly were proposed on the current situation,and the authoritativeness should be established,the public trust should be strengthened and the full play of the supervision function and important function in quality testing spot checking should be given at the same time.