提供的数据象限工程塑料制品的形状，从股票和象限资源增值计划生产的零件测试。
Data provided by Quadrant Engineering Plastic Products from tests on stock shapes and parts produced by Quadrant EPP.
提供的数据象限工程塑料制品的形状，从股票和象限资源增值计划生产的零件测试。
Data provided by Quadrant Engineering Plastic Products from tests on stock shapes and parts produced by Quadrant EPP.
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