ABOUT US FLANGES are used to connect pipes, pumps or other things to make piping system. FLANGES are basically a part to make joints by bolting together. it is also used for cleaning or modification purpose. These are made up of a wide variety of alloys such as carbon, forged, stainless steel or duplex steel. we at CHUAN HOCK HARDWARE PTE. LTD. offer you top quality of products to meet your specification.