Item: Laptop Rucksack Waterproof Laptop rucksack waterproof with additional pouch for cable,batteries, wholesale laptop bag, Usb charging customized laptop bag, business backpack for men.
Scope of adaptation: Adaptation range: 18650, 26650, 32650, series and parallel combination of square batteries (or similar), to achieve automated single-sided spot welding
Style No.:B00208Color: Dark grey/Black/Lt.GreySize: 47*32*16cmCapacity: 24LLaptop size: 13-15.6 inchMaterial:PolyesterBrand:arctic hunterMOQ:20pcs arctic hunter backpack,500pcs for customized logo backpackUsage:School,Travel,Business,DailyFunction:USB Cha
The purpose of the ball bearing is to determine the relative position of two parts (usually the shaft and the bearing seat) and ensure their free rotation, while transmitting the load between them.