bids are invited for items required for foldable electric bicycle mtb foldable cycle with 21 speed gear and dual suspension and dual disc brake , bldc rear hub motor kit for geared cycle bldc motor , helmet for e-bi-cycle , li-ion cell , battery management system- bms protection board , lithium ion bms for 11.1v battery with balancer and ntc probe , li-ion cell holder , hailong case for li-ion battery - 52cells , hailong case for li-ion battery - 65cells , phillips head m3 x 10 mm screw , phillips head m3 x 25 mm screw , ss bolt precision stainless steel 304 , ss bolt precision stainless steel 304 allen key head , rivet nuts inserts wide head m5 -ss304 , rivet nuts inserts wide head m4 -ss304 , brass heat threaded round insert nut , 1p plane coated nickel welding strip , nickel strip 1p plane coated nickel welding strip , concrete steel nails gun 5 speed wall fastening gun tool with 1000pcs nails , 12v mini spot welding machine automatic control , 1s battery electrical insulation ring adhesive for positive terminal , cross filament tape roll 24 mm , cross filament tape roll 48 mm , polyimide heat resistant kapton tape 12 mm , polyimide heat resistant kapton tape 25 mm , single side adhesive barley insulation paper roll 100mm , mrs round shell type connectors male-female pair aviation plug socketthreaded coupling , mrs round shell type connectors male-female pair aviation plug socket threaded coupling , e-bike lithium battery fast charger with automatic cutoff , electric bicycle total quantity : 2608