... 3.better connecting quality QTD China supplier ac hose crimping tool QTD-12The instruction of our company:Tianjin Qiantongda Rubber ... hydraulic hose, hose assembly, hose fitting, as hose crimping tool, hose crimping machine, hose skiving machine and seal parts in ... machine.all the accessories failures will be repaired (if necessary, replace) free charge during the warranty. In case of damage from ...