Q: Why choose Guangzhou Senyi? A: 1. Reliable quality and competitive price    2. Professional and rich experience in machinery spares 3. Quick response and shipment     Q: Are you a manufacturer or a trading company? A: Both. Some of products are produced by our factory, for example, nozzle, delivery valve, plunger etc.   Q: How long does delivery take? A: Most of the goods are in stock. Normally, will take 1-7 days after payment.   Q: How can I trace my order? A: After shipment, we will inform you tracking number for checking.   Q: What is your after-sales service?  A: Your satisfaction, our impetus. We will test the goods before shipment. When you meet quality problem, we will check and confirm it. If it is the problem of our goods, we will refund or send same parts to you again.