... fittings 1.ISO 9001 2.SGS TEST 3.PTFE Accessories for Compressers,Oxygen Makers,and Other Machineries AIDMER PTFE Compressor ... raw materials through corresponding craftsmanship according to parameters designed for different machines.Su-ch materals as Sn-Cu powder,enhanced glassfibre ... <6hardness of surfaceno≥90 Ⅲ,Applications:Used as sealing materials for compressor,oxygen makers,and other machines