In today's world, China is becoming more and more powerful in international community and Chinese Dream is on its way to come true. In 2011, China became the world's second largest economy with $5.4742 trillion, and China is changing from made in China to create in China. With the accelerated pace of new urbanization construction and the repaid expansion of urban scale in large and medium-sized cities, investing in the construction of subway has become the best choice for many cities. construction waste crusher and mobile crushing station with advanced technology and high quality produced by SBM Machinery will play an important role in the subway construction. According to the media, the urban subway operation mileage in China will increase 1000 km over the next three years, and nine cities will say goodbye to the history without subway. The nine cities are Qingdao, Wuxi, Changzhou, Fuzhou, Dongguan, Zhengzhou, Changsha, Nanchang and Harbin. Subway construction requires a lot of sand and gravel aggregates, and artificial sand has long been the preferred because of the lack of natural sand. Sand aggregate production line manufactured by SBM Machinery composed of vibrating feeder, jaw crusher, vertical impact crusher (construction waste crusher), vibrating screen, sand washer, belt conveyor, concentrated electronic control equipment has mature technology. SBM Machinery can produce and design the complete equipment that the production line needs, thus achieving the best equipment matching degree. SBM Machinery also can produce all kinds of mobile crushing stations which will provide material crushing and transportation for the construction site and carry out sand making operation directly beside the site, thus saving transportation cost and realizing convenient and quick effects.