No time to follow up all my customers in hand now. TMBP are using Cartex for cleaning Intermediate shaft (Phlaoklang) by water treatment by white Benzine : tinner (70:30) but Cartex cannot clean oil. They have to use 3-4 pieces of Cartex to clean it. They need to use only 2 pieces of Cartex to clean it.
Then we let them try Chux and trikoton but chux does not work because there are fiber. They have not tried our Trikoton yet. Follow up again next week.