... cleaning. 2. Fast heat dispersion. Galvanised perforated cable tray(CE,ISO9001:2008 tested) Perforated cable tray Material: Q235B Steel (Chinese ... in China,very strict Quality Control system.All products passed CE,ISO,SGS,NEMA accreditation.>Modern factory,advanced facilities with ... quality and fast, consistent, and reliable service by our ISO9001:2000 compliance. For off-the-shelf orders we can ...