... % use 2.Highest quality in China 3.Famous Brand welding inspection hatch QC1003 QCMETAL, the first &best& the most professional Access Panel! ... Product details Item No.QC1001-1, QC1001-2, QC1002, QC1003, QC1004......1024....... Brand QCMETALMaterialGalvanized steel or Aluminum frame with gypsum ... light fixtures , vents , fire fighting pipeline, bathroom pipeline,etc.………… welding inspection hatch QC1003