CNIS GB/T 1231-91 Specifications of high strength bolts with large hexagon head, large hexagon nuts,plain washers for steel structures. Формат поставки-PDF. Язык стандарта-Английский
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CNIS GB/T 1231-91 Specifications of high strength bolts with large hexagon head, large hexagon nuts,plain washers for steel structures
Язык:
Английский
Формат поставки:
PDF
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