This below steps will show you how to check the cof number: Step1： Choose one cof in your hand Step2:use the magnifying glass to check the top left corner of the cof chips Step3： You will get the cof number,and please record together and send to us to buy

This is the cof bonding machine ready to send to Bangladesh customer,2021.10.08

Hi friends,our festival is over,and we have return office now,if have inquiry please contact us,Thank you!