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Aluminum coil for thermal insulation 1060 3003 zero.2-8mm needs to have a clean surface, can suitable for wrapped on the pipe for cladding and with moisture barrier. The surface first-rate requirement are not any oil, no shade difference, no oxidized spots and different problems. The 3003 aluminum coil for insulation cladding need to be better press the edge and wrap the pipe, and there may be no cracking throughout the crimping manner, The thickness distinction of the aluminum coil need to be controlled inside zero.02mm, handie... more