QGM independently developed and mass-produced PC imitation stone brick equipment in response to market demand and realized the quantitative production of PC imitation stone bricks with its advanced technology and craftsmanship. The price has been widely recognized and favored by municipal departments and real estate companies.

To realize the recycling of construction waste to make bricks, it generally needs to go through 5 processes of sorting, crushing, screening, block making and brick curing. The performance of finished blocks made of construction waste mainly depends on the performance of raw materials and the process of block making machines.

On March 25, 2020, 15 ministries and commissions including the National Development and Reform Commission and the Ministry of Industry and Information Technology jointly issued the "Guiding Opinions on Promoting the Healthy and Orderly Development of the Sand and Stone Industry". The "Opinions" clearly stated: support the comprehensive utilization of waste rock tailings.

In order to solve the problem of "water shortage, waterlogging and dirty water" in cities, China is vigorously promoting the construction of "sponge cities". Statistics show that from 2015 to 2016, the central government allocated a total of 40 billion yuan to subsidize two batches of pilot "sponge cities". Today, the first batch of pilot projects has been successfully concluded, and all 16 cities have passed the test.