... ,steel,tin,aluminum etc. It is used for glass jar and metal jar. 2:Custom 1: Metal cap for jars.The material ... , Tin, aluminum etc. It is usually used as storage jar cap, cosmetic jar cap, drinking jar cap etc,,,2: Custom design is welcome ( function ... .run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Metal cap for jar