One method of machining thin cover with seal ring groove;

The functions of casing for in-situ leaching of uranium,effects of casing wall thickness on bearing force,advantages and application of thin wall casing are discussed,and the practical suggestions to thin wall casing test and application to be conducted in China are proposed.

This paper made chiefly an introduction on turning process of the thin wall copper sleeve and design of fixture structure.

Accurate design and analysis on thin liner in fixture of liquidity plastic;

This paper is based on the example of processing the tire of pump stock's hole on coal mining machine,simply relates the course of design and machinery analysis about the mechanism,discusses the circumstance of force stress and deformation in detail in theory about thin liner in clamping of liquidity plastic and elastic centering.