Quality Gurantee 10 years quality gurantee base on non-human damage and normal environmental conditions. Delivery Terms Regularly 30 - 45 days after deposit received and confirmation of pre-production samples. Payment Terms 30% paid for deposit by T/T before production arranged,the balance to be paid before shipment. Brand's Terms 1. Generally, we use our own brand: Xindoors or XSF. 2. OEM is available, and we need MOQ 500 sets and brand authorization document. After-saleservice Free installation instructions.