DEAR SIRS im looking for the best quality camshafts for isuzu 4BD1T/ 4HG1T/ 6BD1T/ 6HE1T NISSAN BD30/ TD42 CUMMINS 4BT.NH655 MITSUBISHI 4D34 NAVISTARA DT 466 CATERPILLAR 3116 Actually we import some ISUZU 4HG1T ad 4BD1T from china , but the quality is very poor could you supply good quality,im not looking for minimum prices, its very importanat, but quality is firts may i know materials and composition used for camshafts which is the warranty CUMMINS if were possible send list for all cummins spare parats as, liner set for 4BT. 6BT .175 and 212 . 6CT and NH855 HAVE YOU ANY PARATS FOR NAVISTARA DT 466 CAT 3116 NISSAN BD30, FE6T/ FD6T HINO W06D HJC05T, H07C TOYOTA 14B AND 15B