Trash can be used on occasions that can be divided into public trash bins and household trash cans . There are separate garbage bins and bins that can be classified as rubbish bin . The processing materials can be divided into plastic trash cans, stainless steel waste bins ceramic trash cans, wooden waste bin , cement garbage can and pulp trash bins and so on. The opening methods include open type, uncover type, step on and off, inductive (infrared), etc. However, with the progress of society, intelligent inductive trash has become more and more popular, because he is not only smart, the most important is not contact, more health and hygiene.