Donggaun Hong Tu Instrument Information co.,ltd, specializes in developing and producing helmet impact testing machines .
   Our main products are : shock absorption testing machine,test line and impact point locating laser table,chin strap testing machine,penetration testing machine,roll-off testing machine,head forms, high velocity ballistic cannon,light diffusion testing machine,sand abrade machine,refractive powers offlens testing machine,light transmission testing machine,Fogging ocular testing machine.ignition testing machine.