Shanghai zhenzhong has Eight series of products with complete intellectual property rights have been developed:EP series resonance free variable frequency and variable eccentric moment electric driven vibratory hammer, DZP series resonance free variable frequency electric driven vibratory hammer, KLV series resonance free compaction sand pile/gravel pile vibratory hammer, EPH resonance free variable frequency and variable eccentric moment hydraulic vibratory hammer,NV series dual channel down-the-hole hammer rock drilling rig, JUZ series high torque fully hydraulic long spiral drilling rig, JU series fully hydraulic crawler multifunctional pile frame, and FZ series Internal support clamp.