Ramkrishna Forgings has emerged as the lowest bidder followed by Bharat Forge and SAIL, it said. Presently, SAIL supplies at an average rate of Rs 1,87,000 per tonne. The existing domestic capacity of SAIL is 40,000 wheels and RINL is 80,000 wheels (yet to start regular commercial production), making a total of 1,20,000 wheels. The railways has been importing various types of forged wheels required for locomotives and coaching stock (LHB) since 1960s from the UK, Czech Republic, Brazil, Romania, Japan, China, Ukraine and Russia.