immature in those days and the only reasonable way to identify a crack in an egg shell was by "listening". an intact egg shell will vibrate when impacted, like a wine glass will "sing" when you tap it with your finger. multiple methods if there is a crack in the egg shell, no matter how small, the tapping...
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t companies | europages all the products and services in the europages database in alphabetical order - t # a b c d e f g h i j k l m n o p q r s t u v w x y z t ball unions - tamperproof systems for packing tampo printing on glass - taping machines for packing tapping - machine tools - technical articles...
& equipments clamping equipment humidity control inspection view more hand tools cutter engraving hammer tool view more laser machine laser marking, cutting, engraving machine marine marine monitoring systems marine navigation systems marine signals & communication view more material handling equipment...