ULEMA 泓观五金 IPU气管 进口纯料PU气管 足米足量耐压防爆用料实在坚决不手抖！ HIGH STANDARD MANUFACTURING PROCESS.EASYYINGDUIYANJUN WORKING ENVIRONMENT.DURABLE WITHOUT DEFORMATION USING PU PURE MATERIALTO MAKEREFUSE TO CUT CORNERS,REFUSE TO RETURN THETUBE IS CTYEARS OF RAPID DEVELOPMENT,IT HAS SWEPT AC 2 PU HOSE