Profile: Guiyang Sunpoc International Trade Co.,Ltd is a manufacturer and exporter of excavator parts. We are specialized in producing all kinds of hydraulic cylinders, excavator buckets, standard arms/booms, long reach booms and arms. We offer various kinds of products which are reasonably designed from shapes, materials, and stress features. We can design and produce hydraulic cylinders according to the requirements of excavator and loading machines. The cylinder liners are made of cold drawn seamless steel tubes with strong honing technique. The cylinder length can reach up to 7 m. The piston rods are made of chrome steel with special heat treatment. The duriron sing technique is applied to the surface, which makes it high in smooth finish with tough inside and hard outside.