I consulted about.1. the value of tolerance in a drawing at some point, I have a problem, namely, the point is 12 +/-1 cp, cpk is not because I am using a tape measure, measure would add coordinates +/-2 will stick to the issue or not.2. we do not have a certification from UL materials, you can cancel it?
การแปล กรุณารอสักครู่..
