ing machine to make the ceramic bracket firm.Delivery and shipping:all products can be delivered by Express, by air and by sea according to your order quantity, generally speaking, if the weight is less than 45 kg, Express will be the first choose, weight is 45kg-200 kg, will choose by air, weight is more than 200 kg, the goods will be delivered by sea.FAQ:1. what’s shape of bottom of the orthodontic ceramic bracket braces?A: It’s net type, if you need other type, please inform us.2. How long