Q1: Are you a trading company or a manufacturer? A: We have our own factory. Q2: Can you produce non-standard or customized products? A: Yes, we can. Q3: What is your delivery time? A: Normally, if we have inventory, the delivery time is 7 days, and if not, it is 15-30 working days. But it also depends on product requirements and quantity. Q4: Do you provide samples? Are these samples free of charge? A: Yes, we can provide samples, but they are not free. Q5: What are your payment terms? A: 30% deposit wire transfer or irrevocable sight letter of credit. Q6: What is your after-sales service? A: After receiving the goods, we can provide remote installation guidance. If you have any questions, please feel free to contact us.