With the definition of mouth bags

Through to the bag ( Generally for self-supporting bag) Add a high-pressure polyethylene (with cap HDPE) Hard mouth, was formed with mouth bags. According to different installation position with mouth, with mouth bags can be divided into installed upright and oblique mouth type two kinds. According to the installation in the shape of the plastic mouth on the packaging is different, with mouth bags can be divided into narrow type and short mouth type two kinds. With mouth bags processing paper bag welding mouth two links, each link, on average, have higher technical requirements, if the master is bad, very prone to rupture, leakage and other quality problems.