Regarding GST for transport co

Dear Sir/ Mam,

I am working in Pvt Ltd. company. Its Transport co. so i have put GST in RCM for my debtors in GSTR 1. But we are also GST bill for Truck Repair, Tire Purchase, Stationery purchase. Cartridge refilling, Printing Bill Book, Delevery challan etc. Can we get this Benefit in GST tax as we have shown only in RCM,

Pl. Advice what do and if i can get this benefit than Pl. advise me the Process to get benefit.

Thanks & Regards,

Rajeev M