GB/T 29618.1-2017
Field device tool (FDT) interface specification—Part 1: Overview and guidance 现场设备工具(FDT)接口规范 第1部分:概述和导则 |
GB/T 35513.1-2017
Plastics—Polycarbonate (PC) moulding and extrusion materials—Part 1: Designation system and basis for specifications 塑料 聚碳酸酯(PC)模塑和挤出材料 第1部分:命名系统和分类基础 |
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