The glass can be divided into physical steel and chemical tempering, glass tempered glass can become more robust, tempering furnace is used for glass tempering equipment. Steel furnace is divided into four parts. The first part is called put the fragments, this section requires a two staff, and the second part is called the heating section, the glass is heated to high temperatures inside, the third part of the cooling section received the glass out from the heating section requires rapid cooling in order to achieve the effect of steel , the fourth part is called to take the fragment, good tempered glass need to be taken down for packaging put away, this location also need one or two staff.

From the the employees mouth that employees like to work there put the fragments, in particular, like tempered glass, glass tempered relatively long time, they can use this time to secretly lazy. The contrary, most do not like is the tempered glass, small glass tempering the speed is much faster, and the small size of a small glass, put the glass to the drive shaft furnace just done and have to put down a furnace. Staff take the fragment is not so comfortable, large glass better. Small glass must be finished within a certain time picking packing, you want to finish the next furnace glass out you have to full out of the ground, so this location will generally arrange several workers. Staff and a pain is too much the sound of the steel furnace, seriously affecting the talk exchanges, and work in such a high-decibel environment for a long time, the hearing is not good.