Recently, Jiajiang annual output of more than 1 million square meters of May colorful sintered water brick production line officially achieved mass production. This is also Sichuan production area at present advanced equipment technology, the largest production capacity of sintered water brick production line. It is understood that in order to seize the future sponge city construction of the "trillion-class" market, in the past two years or more, the domestic water-permeable brick production line has grown rapidly. In 2017, there were only more than 10 water-permeable brick production lines in China. By 2018, it had grown to more than 30. In 2019, the water-permeable brick production line continued to grow.