For the reinforcement of the thick cardboard boxes metal protect horn, box mouth clamp, and at the bottom of tray fixed accessories and hardware, already developed abroad and after improvement , have the use of the three hundred and forty - year history.
The '50 s clip patented octagon gasket and large square head since the tight screws, some places still in use. In addition, there are molded pulp tray used for generation of wood packaging maybe , "paper" products as a cushion; Non-polluting packaging lower level of corn starch foam particles cushion packing and so on, all have high technology equipment running in multiple countries.
There are two broad categories: hand brush the floor paint solvent paint and water-based paint. Solvent-based paint with xylene as solvent, after the xylene volatilization , floor paint is formed. This kind of paint contains xylene and formaldehyde.