Auto parts, standard parts, hydraulic parts, pressure pipe components, machinery production, heat treatment processing, cold-drawn steel, sales of agricultural vehicles, motorcycles, automobiles (excluding branded cars), road general cargo transportation, self-operated and agent import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export). General items: non-residential real estate leasing; machinery and equipment leasing; leasing services (excluding publication leasing)