Why is the different about sand washing machine price?

There are many Sand washing machine suppliers in China, and their sand washing machine prices are different. Some is high, and some is low. So how is the quality about sand washing machine? Firstly we need to know what can influence the sand washing price. Generally the production cost of sand washing machine, the function of sand washing machine and the brand of sand washing machine are the main reasons to influence the sand washing machine price. The function of sand washing machine is the key for buyers to focus on. Meanwhile, the after-sales service is another key point.