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One is the instability of the hand, one is the inconsistency between the planer blade and the planer, and the other is that the planer itself is uneven made of the wood.
I used to be a CNC apprentice, but the boss couldn't do it anymore and left, wasting a lot of my time.
The main harm of formaldehyde is the irritation of the skin and mucous membranes, and when formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentrations greater than those can cause eye redness, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, wheezing, dermatitis, etc. Newly renovated rooms have high levels of formaldehyde, which is a major cause of many diseases. >>>More
Help your master with something.
Don't be an injector, the injector has a great destructive power on the skin, and the paint can still kill sperm, so it's best not to exceed one year in this position.
Waxing the car should be able to remove it, and if it doesn't work, polish it again to ensure that it works.