https://batchenangmua.net/bao-....gia-mai-xep-san-thuo
Although some people hold on to a handrail going up and down stairs, most don’t. That’s why commercial code requires intermediate handrails every 30 in. (new) or 44 in. (existing). Small children are especially prone to overestimating their limits while romping around staircases. Safety nets installed over stair railings serve as ideal fall protection. Stairway protection A railing net closes the stairwell gap and prevents small children from falling down. It is particularly needed in kindergartens, children’s homes and schools as s