Similar invoices received before were not deducted by the accountant, but directly recorded in the cost for two reasons:

1). Accountants are not familiar with this kind of deductible business;

2). If it is not directly used for production, it shall not be deducted; For example, materials of projects under construction (aluminum alloy and other materials), canteen supplies, staff utensils and so on. Used for employee welfare expenses, etc.;