Surgical mask the bottom layer and surface layer of the product are made of polypropylene spunbonded non-woven fabric, and polypropylene electrostatic melt blown non-woven fabric is added in the middle, which is heat sealed.
The industrial high bay led lighting fixtures are favored by people for its directional illumination, low power consumption, good drive characteristics, fast response, high seismic resistance, long service life and environmental protection. Our mining lam