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機械式壓力開關(guān)內(nèi)部NBR是指丁晴嗎,?軸向壓力表內(nèi)部有橡膠密封嗎? |
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點評
PTFE確實耐絕大多數(shù)酸堿鹽等無機物料的腐蝕,耐溫性能也好,,但是你這輸送高分子物料,,是否與物料發(fā)生反應(yīng),一定要咨詢專業(yè)廠家才可以
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