NES_SecurityDoor on Instagram: "𝐂𝐄 𝐌𝐚𝐫𝐤𝐢𝐧𝐠 is not a decorative symbol, but a safety verification system built on data and testing. This video documents the final internal validation test before the product is sent to the certification laboratory. Only after passing this stage does the product enter the official CE Marking testing process. Every critical stage of CE Marking testing— from structural load capacity and impact resistance, to overall safety and durability— is measured strictl