Машины швейные бытовые. Определение смещения одного слоя материала по отношению к другому
Название (англ.):
Household sewing machines; Determination of creep of one ply of material over another
Описание (англ.):
The method is applicable to motor-operated household sewing machines, but it may also be possible to apply it to hand- or treadle-operated machines. Includes additionally to definition, principle, preparation of the sewing machine, procedure, expression of results and test report an annex which specifies material and apparatus.