Gas charging is not only gas filling its challenge for technician because Everyone can do gas filling but how should not everyone knows how to charge gas. AS Dynamic Engineering PVT. LTD. has the expert teams for only gas charging work of Split air-conditioning, cassette air-conditioning, Tower air-conditioning, portable air-conditioning, floor ceiling air-conditioning, Slim air-conditioning, Duct-able air-conditioning ,chiller plant and VRV system, We test machine two times before gas charging with Nitrogen pressure and soup water. And we are giving warranty of gas charging. we are giving this service in Multi-national companies.