1,found in 2010 year2,sell to south Asia,American ,europer3,DJ damping is brand ,material made in Gergemay,so green that you can chew

Dongguan shijia sound insulation material.,Ltd found in 2005.Mainmarket:Americas,Asia,Africa,and so on,has 80 company employees,docar sound damping materials,car vibration damping mat.welcome toinquiry.