<ul><li>Excellent sheet metal forming technologythat we’ve been working on for 20 years is the key technique of  the product.</li></ul><ul><li> Size error of our products isstrictly limited within such a small scale as 0.004inch from the very firstprocedure of stamping. </li></ul><ul><li>Though it is hard, it is needed to be done. So ourproducts have perfect tightness and they won’t let your mask fall off or damageyour hat. </li></ul><ul><li>Our striving for perfection make each one of our products to besturdy and durable even to last for your lifetime and this is what we arepursuing. </li></ul><ul><li>It won’t let you down. </li></ul><p>                                                                                     Thanks my friend<br></p>