Horizontal Cylindrical Type Thermal Oil Coil Pipe Rockwool Insulation Capacity (cbm): 6, 8, 10, 12, 15, 20, 30, 40, 50 Asphalt Storage TankHorizontal cylindrical type with thermal oil heating pipes, outside with rockwool insulation and color steel cladding.Capacity (cbm): 6, 8, 10, 12, 15, 20, 30, 40, 50 Asphalt Storage Tank