Productivity hit a new high in 2018: Our company put into operation its first rock wool production line with an annual output of 25,000 tons in 2015, committed to building the "Dong Wu Tian Zi" brand rock wool; in 2018, our second rock wool production line with an annual output of 25,000 tons The production line has been put into operation, and our annual production capacity of rock wool products has increased to 50,000 tons.
