How did you research and select providers or contractors for the materials used in your project?

你是如何为项目中使用的材料选择供应商和承包商的？

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Unless specifically authorized by site management, contractors will not remove hazardous or non-hazardous waste materials from the site.

除非现场管理人员特别授权，否则承包商不得从现场中移走危险或非危险废弃材料。

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New source of special characteristic raw materials provided by the new or present sub-contractors.

新的或现有的分承包方提供的具有特殊特性的原材料的新货源。

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In the 1970s Lamb and Casey's founder, Donald Lamberti, started hiring their own superintendents to look over the shoulders of the contractors building their stores and even bought the construction materials, a practice that continues today.

FORBES: Inconvenience

With volume, you may be able to increase that per-property profit due to economy of scale, buying materials in broke, and receiving significant discounts from contractors.

FORBES: Earning a Living With Rental Properties: Should You Be a Landlord?