It is generally made of stainless steel
WAG-9(wide gauge,A.C power transmission,Goods)is used in freight purposes. It’s speed is less but torque is more which is perfect for pulling heavy to very heavy freight.
WAP-7(wide gauge,A.C power transmission,passenger)is used in passenger vehicles over long distances,usually used in Garibrath and Rajdhani Express.It’s lighter in weight as compared to WAG-9 which is ideal for high speed purpose.
WAP-5(wide gauge,A.C power transmission,passenger)is used in passenger vehicles over short distances,usually used in Shatabdi Express and Janshatabdi Express ,lightest in wieght as compared to its fellow counter parts,making it the fastest passenger engine.
WAP-5(AERODYNAMIC)(wide gauge,A.C power transmission,passenger)it is somewhat same as WAP-5,the only difference is in its design,it’s more aerodynamic as comapared to it’s parent model,making it one of a kind.
LHB(Linke hofmann busch) underframe is basically the bottom part of a coach, we generally make LHB underframe for 3tier,general class,2tier.
It is generally made of stainless steel, which comprises of a slider for holding the shell battery.