DIN 4941:1965-01

Отменен

Screw Threads for Drill Pipes for Seamless Drill Pipes for Water and Rock Drillings according to the Percussion Drilling and Core Drilling Method — 1 стр.

Описание Изменения Ссылки Версии

ICS

21.040.30 Special. Including miniature screw threads, pipe threads, etc. / Специальные резьбы. Включая мелкие резьбы, трубные резьбы и т.д.