Screw protection cover, also known as screw shields, also known as retractable shield. The use of protective cover screw: screw protection, light bar, column, shaft parts from dust contamination. 
 This product is made from nylon fabric, insulating sheet, go along with the rubber cloth, anti-tarpaulin, waterproof, fire retardant fabrics, acid cloth and other materials tailored to different needs for customers. General sheath elongation and compression ratio of 1000:150, product shape design and manufacture according to customer requirements, polygonal screw protective cover, protective cover screw rectangular, cylindrical screw guard, also available on demand ratio larger or smaller sheath. With the mechanical parts can be stretched or compressed to make movement, diameter, extension length, unlimited connections, etc. can be bent. Installed in the machine internal or external, can be used vertically or horizontally. Screw protective cover with dust, water, oil, emulsion and anti-chemical, anti-iron, resistant to tensile, impact deformation, corrosion resistance, long service life. Protective cover to be protected by installing the two end pieces on the flange, and being introduced to protect pieces of non-contact connection. The protective sleeve and flange of the connection between the security is to rely on its own pre-compression stretch and achieve, so the work is stable, flexibility, and low noise, and its shiny black surface, with the majority of law on the machine blue pieces of coordination. Also available on demand white screw protective cover. Screw protective cover made of high quality made of spring steel heat treated for rolling screw, shaft, rod type parts to implement protection. Protective cover to be protected by installing the two end pieces on the flange, and being introduced to protect pieces of non-contact connection.