“ผู้ให้สัญญา” มีความต้องการประหยัดพ

"The Promise" have a need for energy efficiency in buildings, the place of "the contract" by taking of the material. "Contractor" replacement of equipment. "The Promise" existing and / or buy more.And cost savings, according to the will of. "The Promise" by the two sides agreed contract has a significant following
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"The promise" with energy saving requirements within the building. The place of contract "provided" by the recipient of the material, "rice promised" change agent "contract provider materials" used, and/or more purchase. And savings, according to the wishes of "the promise" by both sides have agreed to a contract with khan and then text. The following:

The "contract" is the need to save energy in the building where the "contract" with the materials and equipment, and of the "contract" is replaced materials and equipment of the "contract" is the original and/or purchase.and cost savings in accordance with the wishes of the "contract" by both parties agree to apply the certificate of contract, there is a message: