化工工厂初步设计文件内容深度规定 HG\T20688-2000
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塑料负荷变形温度的测定第1部分:通用试验方法 GB\T1634.1-2019
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管架标准图(一) HG\T21629-1999
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塑料负荷变形温度的测定第2部分:塑料和硬橡胶 GB\T1634.2-2019
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色漆和清漆漆膜厚度的测定 GB\T13452.2-2008
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焦化沥青类产品喹啉不溶物试验方法 GB\T2293-2019
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化工设备、管道外防腐设计规范 [附条文说明] HG\T20679-2014
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轮胎气门嘴芯腔 GB\T9764-2018
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