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GB/T 528-2009 硫化橡胶或热塑性橡胶 拉伸应力应变性能的测定 GBT 12668.2-2002 交流变频电气传动系统额定值的规定 GBT 12668.1-2002 调速电气传动系统 第1部分_ 一般要求 低压直流调速电 GB 16989-2013 土工合成材料 接头-接缝宽条拉伸试验方法 GBT 1685-2008 硫化橡胶或热塑性橡胶 在常温和高温下
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