请给我一个英文协议的框架结构?

买卖协议

合 同 CONTRACT

日期： 合同号码：

Date: Contract No.:

买 方： (The Buyers)

卖方： (The Sellers)

兹经买卖双方同意按照以下条款由买方购进，卖方售出以下商品：

This contract is made by and between the Buyers and the Sellers; whereby the Buyers agree to buy and the Sellers agree to sell the under-mentioned goods subject to the terms and conditions as stipulated hereinafter:

(1) 商品名称:

Name of Commodity：

(2) 数 量：

Quantity:

(3) 单 价：

Unit price:

(4) 总 值：

Total value:

(5) 包 装：

Packing:

(6) 生产国别：

Country of Origin :

(7) 支付条款：

Terms of Payment:

(8) 保 险：

insurance:

(9) 装运期限：

Time of Shipment:

(10) 起 运 港：

Port of Lading:

(11) 目 的 港：

Port of Destination:

(12