In Oct. 2016, Vietnamese friends visited our Rongsheng Company. They are Vietnamese distributors of kiln construction. This time, they choose to talk with us face-to-face caused of the before cooperation between us. They believe our Rongsheng strength. After the second visiting Rongsheng Factory and testing refractory bricks and materials, and also checking our advanced manufacturing equipment and process. They finally decided to contract with us for a long term relationship.