master(at)china-shanfa(dot)com(dot)cn // Jining Shanfa is a construction machinery manufacturing company which supplying a wide range of construction machinery spare parts,which located nearby Komatsu & Shantui at Jining city. Our main products include: engineering mechanical fittings,undercarriages such as track rollers,track links,track shoes,idlers,sprockets,teeth,bolts and nuts,pins,bushings and slew bearings which are suitable to all types of excavators & bulldozers. Company Name: Jining Shanfa Construction Machinry Manufacturing Co.,Ltd. Our products are manufactured according to the international standards with unique process and strictly quality control. With our engineering expertise,high tech equipment and techniques and top class raw materials we win good reputation among customers. Furthermore,our special heat treatment processes bring consistent surface hardness,superior quality hardening depth and strong core hardness results in excellent wear resistance,strength and durability for long life of our products.