the using test of angle grinder

use skill and method of hot air gun(a) when you blow a power amplifier with a plastic cover, you will often blow the plastic cover of the power amplifier out of shape or burn out. 5110 ...

hot air gun safe operationhot air gun operating instructions< 1 > before use should be sure to have a reliable grounding, to prevent electrostatic damage on the tool components.&l...

i. preparation before the use of electric drill1. connect the drill to the matching power box, plug it in and open the power box switch.2. hang the drill on the equalizer or hook.3. ins...