What is HQTS?

What is HQTS? India Quality Control Inspections and Audits – HQTS. What is pre-production inspection? The Pre-Production Inspection (PPI) is a type of quality control inspection conducted before the production process begins to assess the quantity and quality of the raw materials and components, and whether they are in conformity Read more…

Is R19 better than R21?

Is R19 better than R21? R-21 insulation has a higher density than R-19, although it is designed to fit into the same space. It tends to be slightly thinner than R-19 because of its density. R-21 insulation is more efficient at preventing the transfer of heat, but it costs more Read more…