are you renting (e.g., excavator, crane, loader)? Who is responsible for fuel and transport to the site?
Act of services provided (Акт оказанных услуг) or a Waybill (Путевой лист) is required to confirm the work volume and satisfy tax requirements. uslugi spectehniki dogovor
To make this contract ready for your specific needs, let me know: are you renting (e