The decorative effects of lampshades of different materials are also very different. Let's take a lo...
The sealing principle is that the two joint surfaces squeeze the copper ring to deform, so that the ...
The application of copper gaskets is extremely wide, and the pre-tightening load required by the gas...
Many people think that the lampshade is for decoration and good-looking, but the role of the lampsha...
The solid copper washer is processed by mechanical cutting and other methods, and its excellent flex...
Mainly divided into: high-efficiency vacuum cleaner filters with partitions, high-efficiency vacuum ...