Indoor railing systems are mainly used for stairs and balconies. The indoor stair handrails mostly use a glass railing system that can be fully protected. The glass railing system can protect children and prevent them from passing through the gaps in ordinary stairs and falling from the side. Glass railing systems generally consist of glass railing fittings, glass, and glass railing fittings are usually made of stainless steel and aluminum. Has a lovely metallic sheen. The stair railing will be very aesthetically pleasing. It is also possible to choose other railings, as long as the gap between the railings is small enough. Both stairs and balconies require professional railing system design companies to design according to specific standards. HULK Metal only offers high-volume manufacturing of accessories for railing systems.