tender for flexible gear coupling for auxillary hoist of 35/10t e.o.t crane to rwfdrawing no.751014411740.warranty:the material should be covered under warrantyfor a period of 18 months from the date of supply or 12 months from the date offitment. note;- 1)material test certificate for chemical composition and hardnesscertificate to be enclosed along with the supply. 2)only standard manufacturersof flexible gear coupling supplying for class iv heavy duty cranes need to quote.proof for the same shall accompany the offer. make:trauline/allflex/gbm/wellmanwacoma/fenner/flextran.