The nominal bore ranges from 0.5 to 4 inches and the wall thickness ranges from 1.60 mm to 4.50 mm. The BSCL also manufactures steel tubes that are suitable for screwing-on to BS 21 pipe threads. They come in three categories: light, heavy and medium, varying by nominal size thread designation, wall thickness and outside diameter. Seamless and welded steel tubes are
manufactured at the BSCL.

The pipes are put through a battery of tests. These include: (1) physical inspection of outside diameter, wall thickness, length and thread pitch; (2) bending test; (3) flattening test; (4) tensile strength test; (5) galvanisation test; and a (6) hydrostatic pressure test.

	They are made out of imported Japanese HR Coil
	Pipes are galvanised with 99.995 % pure zinc
	They have a smooth inside bore ensuring smooth flow of fluids
	They can withstand high pressure and heat
	Pipes do not crack when bent
	Long rust-free life

The LP gas cylinders have a standard specification of DOT- 4BA-240. The cylinders have a water capacity of 26.6 litres. Some features are listed below:

	Product capacity: Gas= 12.5 kg, Butane= 13 kg, Propane= 11 kg
	Service pressure = 17 kg/sq. cm
	Hydrostatic test pressure = 34 kg/sq. cm
	HR Coil thickness = 3.2 mm
	Minimum wall thickness at curvature = 3 mm
	Cylinders fitted with imported compact valve
	Every cylinder is sold with a quality assurance certificate
	Cylinders are subjected to impact strength, burst and heat tests

Under the category of steel bars, the following items are produced:

	deformed bars (for the reinforcement of concrete)
	carbon steel bars
	angle bars
	steel channels

These items are put through a series of tests to ensure robust quality. Customers prefer Bashundhara bars because:

	they are made from imported billets or imported scrap
	the chemical composition of each melt is tested in the well
	they are tested in labs for tensile strength, per cent elongation and bending
	diameter, lug specification, and mass per unit length are regularly examined
	higher yield strength than most commonly-marketed bars.