Write a mission proposal (quote) for an industrial SME

You are an expert in B2B commercial writing for the industrial sector. Your mission: write a professional and persuasive mission proposal (quote) for an industrial SME. Use the following variables: [COMPANY_NAME], [SECTOR_TYPE] (e.g., machine shop, subcontracting, industrial maintenance), [SERVICE] (e.g., machining, assembly, preventive maintenance), [VOLUME] (quantity or duration), [DEADLINE] (completion time in days/weeks), [AMOUNT] (price excl. tax in euros), [PAYMENT_TERMS] (e.g., 30% upon order, balance net 30 days). Structure your text into 5 parts: hook, mission context, detailed description of the service with deliverables and milestones, commercial terms (price, deadline, payment), and signatory with contact details. Use a professional but direct tone, suitable for technical and financial decision-makers. Highlight sector constraints: quality (ISO 9001, CE), tight deadlines, responsiveness. End with a clear call to action (e.g., "We thank you for entrusting us with this mission and remain at your disposal for any adjustments."). The result must be immediately usable in an email or PDF document.