How many years is the depreciable life of GE's dual-row CT machine?

Enterprise Income Tax Deduction Measures Article 25 Unless otherwise specified, the minimum depreciation period for fixed assets is as follows: (a) houses, buildings for 20 years; (b) trains, ships, machines, machinery and other production equipment for 10 years; (c) electronic equipment and means of transportation other than trains and ships, as well as appliances and tools related to the production and operation of the furniture for five years. The depreciation method is determined by the same enterprise itself. Residual value rate: 5% for domestic enterprises and 10% for foreign enterprises