SS STAIRCASE MANUFACTURERS IN CHENNAI Bi-Metal Engineering is one of the best SS staircase manufacturers in Chennai. SS Staircase stands for stainless steel staircase. Let us see about stainless steel. Stainless Steel: Stainless steels are steels which contain at least 10% of chromium in them. The main advantage of using stainless steel is its high corrosion resistance, high and lo... https://g.co/kgs/kPSyGf6