shockproof hose for air-condition 1.Manufacturer 2.ISO9001,ISO14001, EN,RoSH, ETL certificate 3.Dimension: DN1/8'' - 4-1/8'' 1)Vibration absorbing hose shockproof hose vibration absorber. 2) The product is made of copper and stainless steel. The hose and copper tube are brazed welder.3) We have obtained ISO9001:2000, ISO14001, UL and CE certificates and assure you of the top quality of the ...