CO2 fire extinguishing system

dear Sir
we are from TPL shipping JSC and shipowner vessel EVERRICH 1 ( IMO No: 9140451 ),
ship No: 2905. She have provided CO2 fire extinguishing system, now we have no evidences for replace flexible connection for CO2 cylinders. you kindly check and revert us. in the case we want to buy it how do we do?
we expecting for your valuable feed back
Brgds
Mr Quang