Kebanyakan steel grating memiliki permukaan bergerigi atau bertalang, yang membantu mencegah selip dan meningkatkan daya cengkram. British Criteria stipulate that the peak difference between the 2 sections of flooring joined collectively need to be no more than 4mm, or any gap among 2 sections must be no larger than 20mm. https://www.steelgratingsurabaya.com/2018/07/jual-steel-grating.html