On the strict liability principle in the product quality law;

The imperfection of the product quantity law is, to some degree ascribed to the lack of the spirit of economic law, which can be analysed from the context of the competition and the macro-control in the product quality law.

Based on the study of product scope defined in product quality law of China,this paper makes a comparative study of product scope of product liability law in the USA,EC,Germany,Norway,Japan,UK and Hague Pact.

The product quality management law is important part of product quality law in China.

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

Influence factors of PET product quality;

Ways to guarantee product quality of ureabased compound fertilizer;

On Comprehensive Quality Evaluation of Material Dyeing and Finishing;

Analysis and Control Study on Influence the Quality of SBS;

Considerations on quality supervision of water product;

The influence of nonproductive factors on quality of products such as absorbent cotton etc;

The data of trial production showed that the quality of products meet the standard,and every consumption index basically are up to design requirements.

The suitable technological conditions are determined by orthogonal test,and the quality of product is evaluated.

Different proportions of FCC slurry were blended into the feedstock of the unit and the test results indicate that blending too high proportions of FCC slurry will lead to declined recovery efficiencies of gasoline,diesel oil and total liquid production,deteriorated quality of products and accelerated attrition of equipment,thereby reduc.

After innovation, the quality of products was improved.

To evaluate the quality of products by the Chinese pharmacopeia.