1.Best quality and price 2.We design 18 types 3.Can OEM by customers' ... x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x ... mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is ... .6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available. ...