Simple Principle Of Electrolytic Coloring Electrolytic coloring is caused by the reduction of metal ions on the barrier layer at the bottom of the membrane...

Basic Concept Of Dimensional Chain There are two characteristics of the dimensional chain: closedness-each size of the dimensional chain constitutes a closed system in a...

Plastic pipes can be divided into polyvinyl chloride (PVC) pipes, polyethylene (PE) pipes, polypropylene (PP) pipes, polybutylene (PB) pipes, ABS pipes, etc. according to their...