焊工认可试验 - 熔焊 - 第2部分:铝及铝合金
Approval testing of welders – Fusion welding Part 2: Aluminium and aluminium alloys
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Approval testing of welders – Fusion welding Part 2: Aluminium and aluminium alloys
Methods of testing cement - Determination of the chloride, carbon dioxide and alkali content of cement
Methods of testing cement - Part 3: Determination of setting time and soundness
Non-destructive examination of welds - Ultrasonic examination of welded joints
Rods, wires, deposits for tungsten inert gas welding of non-alloy and fine-grain steels
Founding - Technical conditions of delivery - Part 1: General
Flanges and their joints – Bolting – Part 2: Classification of bolt materials for steel flanges, PN designated
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 4: Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 2: Spiral wound gaskets for use with steel flanges
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 1: Non-metallic flat gaskets with or without inserts
Non-destructive testing of welds — Radiographic testing of welded joints
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 1: Steel flanges
Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications