Research into the bending of Aluminum alloy profiles with polyurethane pad;

Research in PVC-U profile discoloration by sulfurous pollutants;

The factors influencing transparency of PVC profile for packing;

The weather resistance effect of composite light stabilizer JC-568 in PVC-U section materials;

Improved the traditional process of the section material cutting, designed a cutting die.

Through the analysis of parts made by section material, an appropriate and effective technological process is put forward.

Factors of Influencing the discoloration of PVC profiles;

A good PVC resin being used for rigid profiles, which has good granule configuration and moderate average polymerization degree, is obtained by improving product technics and adjusting the formula of polymerization.

The characteristics of windows and doors profiles of plastic-wood composite and prospects in usage are presented.

Considering the factors of structure,aerodynamics and beautility,curved extrusions are usually used in lightweight design,while straight extrusions are used in the most circumstances like civil engineering.

In the process of dense bars horizontal continuous casting, the surface damage of dense bars is a difficult problem.