The hub bolt is a high-strength bolt connecting the wheels of the vehicle. The connection position is the hub unit bearing of the wheel! Generally, level 10.9 is used for mini cars, and level 12.9 is used for large and medium-sized vehicles! The structure
Disposable civilian protective masks are made of two layers of non-woven fabrics and a layer of filter materials; the nose bridge is made of environmentally friendly all-plastic strips, does not contain any metal, and is equipped with breathable, comforta
3021 orange Phenolic resin paper insulation laminat Bakelite sheet is laminated by cellulose paper that has been impregnated with phenolic resin, under high-temperature and high-pressure.
Disposable respirator mask is a device designed to protect the wearer from hazardous air, including particulate matter such as dusts and airborne microorganisms, as well as hazardous fumes, liquid drops and gases. This face mask is not designed for long t
Model:【G2】1) High-speed processor and embedded real-time operating system.2) Integrate 32 megapixels high-definition images, audio, PTT intercom, storage,and integrated IR LEDS for night vision.3) Two replaceable and rechargeable batteries support 12 hour