Hi Dear,I am a buyer from Tien_Ta located in Vietnam. I am interested in adding your Winsen flame-proof marked combustible gas detector to my inventory.May I know more information about product such as:Metal Ceiling Material,Model Number,Do you have any quality assurance certificates?Thank you very much for taking the time to answer my questions.Yours faithf Show More...
Hi Dear,I am a buyer from Tien_Ta located in Vietnam. I am interested in adding your Winsen flame-proof marked combustible gas detector to my inventory.May I know more information about product such as:Metal Ceiling Material,Model Do you have any quality assurance certificates?Thank you very much for taking the time to answer my questions.Yours faithfullyTienTien_Tany Tin Nhn l t in thoi di ng