是投标商根据招标文件对招标工程承包价格作出的要约表示，是投标文件的核心内容。
为了从供应商那招徕报价，最佳价格采购过程取决于招标邀请书，也被叫做投标邀请函，投标邀请书或密封投标。
To solicit offers from providers, the best-price purchase process relies on an Invitation to Bid (ITB), also known as Invitation to tender (ITT), Invitation for Bids (IFB), or Sealed Bids.
制作报价书、投标书、合同等文本资料；
Manufacture text inerrorformation and so on quoted price book, tender, contract;
准备竞争性投标、报价和建议书，以及相关的规范、条款和条件。
Prepare solicitation for competitive birds, quotations and proposals with specs, terms and conditions.
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