Hong Tong Instrument Information Co., Ltd., is specialized in developing and producing helmet impact testing machines  and Photovoltaic Modules Testing Machines . Hong Tu was initially founded in Taiwan area and built the first factory in Mainland China in 2004. We have firm connections and full cooperation with China's National Third-Party Quality Inspection and Notarization Center on producing and developing high-precision testing machines according to ECE, EN, DOT, SNELL, GB, AS, JIS and other standards.   Our main products include PV Hail Test Instrument, shock absorption testing machines, testing line and impact point locating laser tables, chin strap testing machines.