Pretac company has been committed to study one way vision film, andsuccessfully developed the exclusive technology which is differentfrom the traditional ones, Â In 2008, we introduced advancedcoating production lines and the most advanced numerical controlpunching machines. Compared with the traditional manual machinery,it greatly improved production efficiency. The whole productionprocedures are contraled by numerical control system, which is inan absolutely leading position of production OWV in China, youcould not worry about the problem of instable quality. Now ourmonthly production is up to 450, 000 sqms. Moreover, from glueingto punching, laminating to packing, all the production proceduresare supervised by professional and experienced technicians. Byadopting advanced white and black membrane laminating technology,Pretac One Way Vision Film have many remarkable advantages such asno glue remaining, without film delaminating, completely removableand good ink absorbtion. All of our products areenvironment-friendly, that means the proportion of chromium in thematerial is much lower than the traditional one. The products willbe able to enter the market in US and Europe directly.