Description
The material used in PCB from top to bottom includes Silkscreen, Soldermask, Copper and Substrate. The last of those layers, substrate, is made of fiberglass and is also known as FR4, with the FR letters standing for “fire retardant.”








Temperature Sensor LM35
Rechargeable Battery Charger
Mechanzo 9+ Controller Brick
Hacksaw Blade
Air Blower
Ball Pein Hammer
Peg Board
Adjustable Wrench Spanner
Power extension 5 Plug
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