alloy surcharges

[маус]

Помогите, пожалуйста. Речь про цены на оборудование.

Контекст:

The prices quoted are based on the basic wages for skilled labour and on the
material prices applicable at the date of our quotation. Should these change we
reserve ourselves the right to adjust our price accordingly.
The price given in this quotation is calculated on the basis of the alloy surcharges
applicable at the date of this quotation. We reserve the right to invoice to you the
surcharges valid at the time we actually purchase the materials.

Спасибо

[Yuriy Sokha]

доплата за повышение цены на дату закупки материалов

[Kate-I]

возм: Данное ценовое предложение составлено по ценам на сплавы, действительным на дату составления.