If put in boiling water for 48 hours, it is still glue-sticking and non-deformed 

Physical mood is better than iron moulds and can satisfy the requirements of constructing mould,  the iron ones are easy to be deformed and can hardly recover its smoothness even after repairing

If used abide by the illustrations strictly, it can be reused more than 50 times, 

Reducing the cost greatly and avoiding the disadvantages from ( rustily and erosive of iron mould)

Solves the problems of leaking and rough surface during constructing process

Particularly suitable for watering concrete project , can make the concrete surface smooth and flat

Realizing a higher economic profits.