A kind of activated carbon based adsorbent material for carbon sandwich fabric and its preparation method

A skin-core composite monofilament and its preparation method and use

Liquid charging method and device for electret material

Devices and methods for measuring Mesh lifetime

Screen mesh, preparation method and application

Modification method of halogen-free flame retardant nylon 66 composition and nylon 66

Measurement methods and applications of high-medium-efficiency and sub-high-efficiency air filter arrestance

The replacement and maintenance method of sand net and the evaluation method of sand net

Air filtration device and its use