The customer Cary from Malaysia is an old customer of our company. He said that the previously purchased test tube brush used in laboratory was used to clean another test tube and found that it was inconvenient to clean, unclean and debris. He asked us if there is a good way to solve this problem.

We know that the total length of the test tube brush used in laboratory previously purchased by Cary is 200MM. But he used to clean the total length of 300MM. We told Cary that the previous test tube brush used in laboratory does have a cleaning effect, but it will not clean the test tube thoroughly. We recommend Cary to re-proof the production. On the other hand, we told Cary that considering that he is our regular customer, he would not increase the cost and we would do it for him at the previous price. When Cary heard it, he was very happy and immediately agreed to the proofing. Ten days later, we completed the long handle brush proofing according to the drawings provided by Cary and arranged to send it to him.

One month later, we received an email from Cary. He said that this long handle test tube brush used in laboratory is indeed very suitable, and the cleaning is in place. Cary said that the quality is still as good as ever, the important thing is that the price has not changed, and it is well worth it.