More than 20 yea of experience in disassembly and assembly of cotruction machinery, and has been disassembling and delivering the cotruction machine for Caterpillar (Qingzhou). Now we are negotiating with Caterpillar (Suzhou) and XCMG to disassemble and deliver their exported machine. We are expected to cooperate with other cotruction machinery manufacture to undertake the disassembly and delivery service for the exported machine.