Hello!!!
An interesting idea from Bolt with nuts ... We look to the end !!!

I buy everything with LetyShops cashback / Register, buy as usual and get a part of the money spent back: https://letyshops.com/soc/sh-1?r=5481121

Kern: http://ali.pub/4s5icb
Vernier caliper: http://ali.pub/3s6ow6
Voltage regulator 4000 W 220 V high Power: took here http://ali.pub/2rsp8u
magnet: http://ali.pub/4usoaa

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Bye!