Our company（strong construction machinery co.,ltd.）,a provincial state-owned enterprise. The market coverage is over 99%.JCM and  STRONG series of excavator are from 0.8T to 99T.We mainly Japanese system product system（The mainly KPM and partly KYB）.for example :hydraulic pump, swing motors and hydraulic valve ect.we have cooperated with komatsu to product PC120 PC200 ect,in 1994.