Pipeline valves. Forgings, die forgings and rolled stocks. Technical requirementsPipeline valves. Forgings, die forgings and rolled stocks. Technical requirements
Description in Russian:
Арматура трубопроводная. Поковки, штамповки и заготовки из проката. Технические требования
Mechanical properties of fasteners made of carbon steel and alloy steel. Part 1. Bolts, screws and studs of specified property classes with coarse thread and fine pitch thread