Ma Tie Metalworking APP is real. Ma Tie Metal Products Company sells handicrafts and jewelry; Arts and crafts appraisal service (excluding cultural relics appraisal); Organizing cultural and artistic exchange activities (excluding performances); Undertaking exhibition activities; Economic and trade consultation; Data processing; Testing service; Auction business; Internet information service. Market participants independently choose business projects and carry out business activities according to law; Auction business, Internet information services and projects subject to approval according to law shall be subject to business activities in accordance with the approved contents after being approved by relevant departments; Shall not engage in business activities of projects prohibited or restricted by the industrial policies of the state and this Municipality.