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... of enclosures against ingress of solid foreign objects having a diameter of 50mm or greater. It is also regarded as the steel ball for dropping impact test. It can be equipped with a lifting ring, and used ...
...hammer is divided into falling dart, falling ball and other impact testing machine, the basic principle is the same, is to put a certain quality of the object, hanging to a certain height, falling impact sam...
... of the optical device fixed on it, wear-resistant arc ball guide rail, finish-machined worm gear transmission, high precision and large driving force. Can be used horizontally or vertically. ......