The cvlinders and pistons of the hvdraulic props produced by our company are all treated with medium-freguency quenching andemoering processes, The cvlinder and rods are processed using intemal and extemal roler burishina technoloay The bydraulic pronwe produce have achieved a 209 increase in suoport strenoth, which is a patented proprietary technoloay independently developed bnce.and the trademark for hydraulic propsour company, Our hvdraulic props are recoanized as a famous brand product of Shandona Proyi(including valves) is a well-known trademark of Shandong Province

■技术参数   ■执行标准:MT112.1-2006 ■Technical Parameters ■Standard Compliance: MT112.1-2006