Q: What are the terms of payment? A: 1. Full order: 30% as advance payment for the order, balance to be paid off before shipment. 2. Small order/sample order/maintenance order: full payment in advance. Q:Can I mark my own brand on the pump? A: Yes. Full order can mark your brand and code. Q: How long is the warranty? A: 1. The purchase order, we guarantee for 12 months. 2. Maintenance orders, we give 3-6 months warranty.