multi-layer co-extrusion water cooling film line 1. ... 100r/minl Barrel heating zone: 4 zones for each layer, heating power: 12kW (2 sets), with auto temperature ... of heavy camion, surface through cementite processing and high precision grinding, with cycle oil lubrication system for outside ... for oil tank: disassemble and assemble outer-install oil-filter, with cooler (oil vacuum by oil pump, cooling ...