Kindly correct the grammar

The purpose of the visit along with John was to hand our product sample, which are produced in our new machine, over to Mr. Berg. We handed our product sample of 5 pieces over to Mr. Berg. We informed him that this product may not be 100% as same as the drawing provided by Mr. Berg, and the purpose of submitting the sample is to show him that we can make this product. Seemingly Mr. Berg is satisfied with the quality of the product. He said the product which he is currenty using is slighly brighter than our part. We explained him that due to machining process brightness may vary. We informed him that now we are planning to buy a machine which has the capacity of 25mm diameter. If he has any product which is more than 25mm dia, we can plan to buy a higher capacity machine. He said currently he doesn't have any part which is more than 25mm dia.