What is the depreciable life of the equipment? What is the depreciation rate?

This can be referred to the relevant provisions of the new Enterprise Income Tax Law, to see which category you say the equipment belongs to, according to which years of depreciation:

Article 60 Except as otherwise provided by the competent departments of finance and taxation under the State Council, the minimum number of years for the calculation of depreciation of fixed assets shall be as follows:

(1) Houses and buildings, 20 years;

(2) Aircraft, trains ships, machines, machinery and other production equipment, 10 years;

(iii) apparatus, tools, furniture, etc. related to production and business activities, 5 years;

(iv) means of transportation other than airplanes, trains and ships, 4 years;

(v) electronic equipment, 3 years.

Annual depreciation rate = (1 - estimated net salvage rate) ÷ depreciable life

Monthly depreciation rate = annual depreciation rate ÷ 12

The "estimated net salvage rate" is generally 5%.