A1: Providing sample to test and charge sample cost when you place order will be return back, customers undertake shipping cost or freight charges. Q2: Visit factory A2: Welcome to our factory at any time. Q3: Complaint solving process A3: Find your salesman—Salesman provides the solution(If it’s our responsibility, we will resend substitutes or return money or provide discount for your next order, etc.; If it’s shipping company's responsibility, we will help you until the problem is resolved.) Q4: Delivery time A4: 3~30 working days after confirming the payment. If the order is urgent, we will push our workshop to finish in advance. Q5: Payment? A5: T/T,Western Union, L/C, Paypal, etc.