Steam hammer: 1.High quality 2.Competitive price 3.Professional manufacture 4.Best service ... structure, the operator of low labor intensity, high efficiency; pneumatic polishing machine, pneumatic hammer (5kg-8kg), graver, pneumatic hammer (1, 2, 3, 4 Article ... ; 9 teeth, 12 teeth, 16 teeth, 20 teeth, 25 teeth); pneumatic water mill, to the water.