Shanghai Zhenzhong has formed nine series of products with perfect intellectual property rights: EP series resonance-free eccentric moment infinitely adjustable electric-driven vibratory pile hammer; DZP series resonance-free frequency conversion electric-driven vibratory pile hammer; KLV series compacted sand pile/crusher Stone pile vibrating pile hammer; DZPJ series vibration free frequency conversion variable torque electric drive vibratory pile hammer; YZPJ series frequency conversion variable torque hydraulic electric drive vibratory pile hammer; NV series double-channel down-the-hole hammer rock drilling rig; TRD underground diaphragm wall milling machine; JUZ series high torque full hydraulic long auger and JU series full hydraulic crawler pile frame