Rectangular Hollow Section Black and GPs are well known for their long lasting quality, exceptional tensile strength and accessibility in custom made specifications. These pipes contain high amount of ferrite and iron that strengthen their magnetic properties. Rectangular Hollow Section Black and GPs are considered as ideal structural accessories for developing bridges, industrial sheds etc. Also used as for developing telecom towers and scaffolding framework, these hollow section pipes are cost effective and low maintenance structural accessories. These hot rolled pipes have precise diameter.