1, laser cutting machine stamp word is clear: the body bearing the words will be printed with the brand, label and so on. Font is very small, but most are factory produced using the stamp technique, but without the heat-treatment is carried out the word pressure, so the font may be small, but a deep depression, very clear. The counterfeit products not only fuzzy fonts, printing technology since the rough Font floating on the surface, some of them can be easily wiped off by hand.[url=http://www.lasercuttercost.com/622/6280.html]fiber
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2, laser cutting machine if there is a hybrid ring: left hand holding the bearing sleeve body, right hand toggle coat rotated, listen to whether there hetero ring. Since most production conditions counterfeit goods behind, completely hand-workshop-style operations in the production process will inevitably be mixed into the sand for a class of impurities, hidden in bearing the body, so the rotation will be issued when hetero ring. This is strictly enforced and between production standards, and with the operation of the machine are factory brand the biggest difference.
3, the surface is muddy traces of oil: It should pay particular attention to when buying imported bearings. Because it is easy to leave the current domestic anti-rust technology is not particularly at home, so the bearing body rust treatment thick traces of oil, thick sticky stick in your hand, and on foreign imported bearings almost invisible the traces of anti-rust oil, but added special care expert said bearings smells a taste, certainly under the anti-rust oil, but do not see it.[url=http://www.lasercuttercost.com/622/6224.html]fiber
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4, laser cutting machine chamfering is uniform: the so-called bearing chamfer, which is the junction with the horizontal plane, vertical plane, counterfeit bearings due to the limitation of production technology, in which the corners of the site handled unsatisfactory.