GB/T12459
GB/T12459, Total:3 items.
The international standard classification for "GB/T12459" includes: Flanges, couplings and joints .
The Chinese standard classification for "GB/T12459" includes: Pipeline fittings .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 12459-1990 Steel butt - welding seamless pipe fittings
- GB/T 12459-2005 Steel butt-welding seamless pipe fittings
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- GB/T 12459-2017 Steel buttwelding pipe fittings—Types and parameter
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