I was taught from you have to produce DX-KR-A, DX-KR-B. When years ago, and the last time.
I had a question for you about how to determine the product DX-KR-M method to check the %concentrate of Ammonia solution in the product?
I would like to you please send methods to test ammonium solution concentrate to me.
because, We want to keep the quality of the product in the future to best and appreciate the chance with this.
And I will wait for an answer from you and to test the samples are kept in production in recent times.