Yes, we have 100% test before delivery.
Generally,according to the quantity, it will take 3 to 45 days after receiving your advance payment.
Yes, we offer the sample.
Two proceeds for the QC to make sure the quality is good.
First, On the production line, our workers will test it one by one.
Second, our inspector will check the products.
Yes,but it has MOQ requirment.
One year after shipment.
If the problem coursed by factory side, we will supply free spare parts or products untill the problem solved.
If the problem coursed by customer, We will supply technic support and supply spare parts with lower price.