Cm envirosystems pvt. Ltd. Is the manufacturer and exporter of environmental testing solutions. Cm envirosystems pvt. Ltd. Presents halt & hass. The time compression systems from halt & hass systems corporation are state-of-the-art equipment for simultaneously stimulating products with all axis broadband vibration and high-rate, broad-range thermal cycling. The performance of these systems exceeds that of all known systems of a similar type while also providing substantial cost advantages over others.