... acid high-thickness hot alkali dirt,weak aicd,alcohol,etcMetals potteryJoil,slop,weak acid,acid etc,mediumHard ... alloyDgoil,dirt,weak acid and alkali,hydrocarbon,alcohol,etcAcid alkaliT≤200Tungeten carbideWoil,dirt,weak acid,alkail, ... fat,etcTeflonFtVarious medium with causticityT≤120Tin bronzeTeOil,salt,alcohol,fatty acid,seaweater,etcAwlGtVitriolAbrasive casting awlNtAlcohol,oil,fatty ...