General items: sanitary ware manufacturing, enamel products manufacturing; Product sales, sanitary ware sales: sanitary ceramic products sales: daily ceramic products sales: hardware products manufacturing; Internet sales (except for goods that need permission to be sold), kitchen and sanitary ware and daily groceries wholesale; Wholesale of hardware products, retail of hardware products, manufacturing of gas and liquid separation and pure equipment, technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion. (With the exception of projects subject to approval in accordance with the law, business activities shall be carried out independently in accordance with the business license)