1.ISO 9001:2000 certificated 2.high quality & competitive price 3.timely delivery... Xiangda TEFLON HOSE:High chemical stability: Can withstand all strong acid, including aqua regia, hydrofluoric acid, thick hydrochloric acid, nitric acid, fuming sulfuric acid, organic acid and so on, strong alkali, strong oxidant, reducing agent and each kind of organic solvent function. Suits the high-purity ...