The flat-ring structure is used for elastomer . It has multi-layers pouring pastern sealing . The simple cover is used as mechanical shield . Above and nether arc top hole can be connected with general crane parts . Scaling accessories are compact and cheap . It can correct core automatically and resisting lateral and twisting load . Weighing accuracy is high and suitable for measuring and scaling case like hopper scales , hook scalesand overload alarm device etc .
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