To protect users' rights - legitimate interests participate in the pre-sale and maintain the normal operating sequence of the pre-sale, the rules rules developed under the agreement in accordance with the relevant agreements and rules of national laws and regulations. Chapter 1 Definition1.1 Definition of presale: refer to A sales model in which a seller offers a bundle of products or services to collect orders Consumer ordering through pre-sale and delivery product tools goods and services to the seller as agreed in advance. 1.2 The pre-sale model is the "Signed ." model "Deposit" is referred to as a fixed amount of pre-sold goods available. The "deposit" can participate in mini games and have a chance to win a lot profit. Deposits can be exchanged directly for goods but the deposit amount Not for exchange.1.3 Pre-sale products: Products provided by the seller By using the pre-sale product tool, only pre-sale words are highlighted on the the title or on the product detail page, in addition other products do not use Pre-sale product tools are not pre-sale products.1.4 Pre-sale system: Access to the system of product tools provided to support sales by selling model before. 1.5 Pre-sale goods price: is the price of goods before sale. The price of the goods Pre-sale consists of two parts: selling price and payment.