KSV1870 confirm the quality standards of the 1a installers
2023-08-01 15:56:14 The 1a installers have a KSV rating that is up to 60 points better than the industry average 1a installers have a low probability of failure. This is confirmed by an analysis recently commissioned by KSV1870. Both at state level and nationally, with an average of 319.36, 1a companies have a KSV1870 rating … Read more