What formalities are required to import second-hand electronic products from Hong Kong to the mainland?

Imported through my company to help you tax declaration imported to the mainland, so that the import procedures are simple, customs clearance is convenient and fast, you can also save the higher tariffs, reduce costs, the whole process only need to pay the freight by the kilograms can be, the freight charges including customs clearance fees, taxes and miscellaneous fees. My company has a professional customs broker specializing in the agency of goods from Hong Kong or abroad to the mainland customs clearance transportation.