Songxin Construction Machinery Co.,Limited mainly deal with construction machinery parts,especially in komatsu genuine parts.We have done this business for about 5 years,the brand contains the komatsu ,the caterpillar,the shantui and the cummins.For we located in the city of jining,shandong province,China,which is the base of komatsu factory in china ,so we can provide these parts with best quality and reasonal price.       The products contain these parts following:The bucket assy, the oil cylinder assy,the pins,the bushings,the engine assy and engine parts,the pumps assy and the parts,the control valve assy,the undercarriage parts( carrier roller,track roller,sprocket,track shoes),the final drive assy,the swing circle assy,and so on.   These models below can get;   1.komatsu excavator parts:pc50/pc55 mr-2,pc56-7,pc120/pc130/PC200/PC210/PC220/PC240/PC270/PC300/PC360/PC400/PC450/pc750/pc1250--6/7/8   2.komatsu bulldozer parts：D60/D85/D155   3.shantui bulldozer parts：SD08/SD11/SD13/SD16/SD22/SD23/SD32.   4.cat excavator parts：CAT320B/C/D   5.Cummins parts: B seri5es/C series/ISBE series/Nseries/K series/M series.   6.Hitachi parts:ZX200.   7.Hyundai parts: R55-7，R60W-5，R60-7，R80-7，R215-7，R225LC-7，R300LC-5，R450