It is Goods or Services ?

I'm registered supplier, I purchased all sort of goods from unregistered dealer such goods are small bolts, belding, day to day labour and so on, I don't have another option because they all are very small trader. I will used these items in Government Nagar nigam.

conclusion :- goods is mine and I provide services to government.

Could you please advise how I will make the bill?

it is supply of goods or supply of service?