Earlier the company is one of conductive rubber, had participated in the state, "conductive rubber connectors and buttons total norms" of the preparation.
公司是国内较早的导电橡胶企业之一，曾参加了国家“导电橡胶连接器和按键总规范”的编制。
There are two types of low stiffness rubber bearings, natural rubber bearings and lead plug rubber bearings, total 18 specifications and 30 large diameter specimens are tested.
研究用低硬度橡胶隔震支座包括天然橡胶隔震支座及铅芯橡胶隔震支座两大类18种规格总计近30个大直径隔震支座。
The contents of dried rubber and total phosphorus etc. hvaen't obvious influence.
干胶含量、总磷含量等却影响不大。
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