Introduce the internal pipeline steel structure and characteristic, and analysis the present situation about the internal pipeline steel standard.
简要介绍了国内管线钢的组织分类及其特性要求，并对国内管线钢目前应用标准情况进行了分析研究。
The results show that chemical composition, metallographic structure and mechanical properties of steel for the tool joints conform to the API standard and the customer's technical requirement.
结果表明，接头用钢的化学成分、金相组织、机械性能符合API标准及订货技术条件。
Accoding "The standard" of "steel structure fire-proof coating," selectively to examine its construction condition.
三是依据《钢结构防火涂料》标准，抽检其具体施工情况。
The principle and structure for the distance conveyance of steel sample analysis data and the program design of the modified standard steel sample value are described.
介绍了钢样化验结果远程传送的原理和结构，以及标钢修正值的程序设计。
The cold heading steel coil generally is low and medium carbon quality steel and alloy structure steel to manufacture various standard mechanical element and fastener by cold heading forming.
冷镦钢盘条一般为低、中碳优质碳素结构钢和优质合金结构钢，用来冷镦成型制造各种机械标准件和紧固件。
The standard specifies fireproofing protection domain, material, structure and quality requirement of structure (building) steel structure in petrochemical industry enterprises.
本规范规定了石油化工企业生产区建构筑物钢结构的防火保护范围、材料、构造及质量要求。
The production process of pre-stressed SWRH82B wire bar in Xing Steel is introduced, its chemical composition, mechanical properties and micro-structure all meet the standard.
介绍了邢钢预应力SWRH82B盘条的生产工艺，盘条的化学成分、力学性能、显微组织等均达到了标准要求。
The complete machine USES the stainless steel structure, achieves the international sanitation standard.
整机采用不锈钢结构，达到国际卫生标准。
This standard applies to rigid structure, average project construction to use seamless steel tube.
本标准适用于机械结构、一般工程结构用无缝钢管。
The standard is suitable for hydraulic steel structure weld; it is also suitable for the steel structure weld of miscellaneous mechanical products in water conservancy and hydroelectric projects.
本标准适用于水工金属结构的焊接，也适用于水利水电工程其他机械产品钢结构的焊接。
The standard is suitable for hydraulic steel structure weld; it is also suitable for the steel structure weld of miscellaneous mechanical products in water conservancy and hydroelectric projects.
本标准适用于水工金属结构的焊接，也适用于水利水电工程其他机械产品钢结构的焊接。
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