YZH established in 2002, headquartered in the qihe economic development zone, shandong province, china. YZH is a high-tech enterprise integrating independent research and development, technological innovation, production, sales, export and agent service. YZH has passed ISO9001 quality system certificate, ISO14001 environmental management system certificate, ISO45001 occupational health safety management system certificate, EAC and European Union’s CE certification. YZH specialized in pedestal rock breaker boom system, hydraulic hammer, rockbreaker and demolition hydraulic attachments. YZH's comprehensive range of stationary type electric h... [Click for detail]