Round Spring Steel Wire, Quality Specifications; Quenched and Tempered Spring Wire and Quenched and Tempered Valve Spring Wire Made of Unalloyed Steels— 4 стр.
Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002— 35 стр.
Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002— 35 стр.
Oil controls for vaporizing burners - Part 2: Additional specifications for controls with complementary devices; Safety requirements and testing— 4 стр.