Quotations are prepared in writing and are valid for the period stated in the offer, typically thirty days. Prices depend on copper and aluminum market conditions at order confirmation, layer count, terminal complexity, surface finish and annual volume; a quotation is not an order, and an order becomes binding only when confirmed in writing by both parties. Technical and commercial questions on a quotation should be raised before acceptance — that is the point at which DFM feedback is still free. Drawings submitted with an inquiry (PDF, DXF or STEP) remain your property and are used only to prepare your quotation; revised drawings supersede earlier versions once confirmed in writing.