In recent years, with countries in the construction of large energy input, a series of major energy equipment project in mount. To petrochemical engineering for example, 10 years ago of the main body of domestic petroleum refining base more for an annual output of 3 million tons of oil refining,Vibrating grizzly feeder 300000 tons of ethylene scale, in succession in recent years that it has in Qingdao, maoming, tianjin etc built an annual output of 10 million tons of oil refining, 1 million tons of ethylene big refinery, pay for the construction of key equipment for the refinery imported from abroad is 1000 t * 4 above crawler crane. And in recent years the development of domestic second generation nuclear power, it is all the imports super crawler crane construction work. Crawler crane will have climax period 2011 years ago the three quarter, China's total sales of crawler crane 1485 units, a 10.57% increase year-on-year. Among them,Mineral sand washer the quarter sales to 443 units, up 42.90%; Sales in the second quarter to 597 units,China Mobile crushers 2.29% year-on-year decline; In the third quarter to a certain extent appeared to rebound, but rebound strength is limited, total sales of 445 units, up 5.45% year-on-year. Only September a month and sell 161 crawler cranes, one heavy with Taiwan, vanda 57 ranked first in sales; In addition, from tonnage on look,China dryers mainly concentrated in the 1 tons ~ 70 tons this interval. Vibratory feeder£ºwww.hxjqcrusher.com/crusher/China-vibrating-feeder.html Rotary kiln£ºwww.china-crusher.com/rotary-kiln5.html Impact crusher£ºwww.hxjqcrusher.com/Impact-crusher.html