... CQC SAK series SAK-4EN connector 1>The part of insulating material uses the modified nylon PA66, with perfect electric ... 't provide microorganism with oxygen and other biologicalelement ,therefore ,the insulating part made of terminal ,anaerobe and epiphyte. 5 ... >PA66 material has strong ability to withstand the most oil ,grease ,alcohol ,carbon tetrachloride,etc…… TypeSAK-4ENproduct name ...