Alexander from Italy found our company through the official website and initiated an inquiry for us. He said they are dealers specializing in the sale of laboratory instruments on Amazon, and they want to purchase a batch of surgical cleaning brushes. He said that a batch of brushes they had previously purchased were complained by customers that the stainless steel was too soft, not easy to clean, and it was difficult to reverse the direction.
After learning about the surgical cleaning brushes previously purchased by Alexander, we found that their previous brush diameter was 18mm, the total length was 250mm, and the diameter of a single stainless steel was only 1.0mm. The diameter and total length are too long, but the stainless steel is small, which will result in uneven distribution of the force, so the brush is difficult to control. We changed the diameter of the stainless-steel stem from 1.0mm to 1.2mm. With the increase of stainless steel, the hardness of stainless steel will increase, which will increase the hardness of the brush and better control.
We sent the surgical cleaning brushes to Alexander. After receiving it, he gave us orders of 3,000. After receiving the test tube brush for a month, Alexander responded: "new customers did not complaint, and the old customers also praised us for better quality. The brush hardness is very good now."
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