Bagaimana saya dapat mencegah pergeseran serat?
Bagaimana resliting logam dibuat?
Metal zips are made by attaching the teeth to the beaded edge of the tape. The teeth can be made from flat brass wire or shaped wire and attached directly to the tape. Or the teeth can be stamped first and then polished / plated before attaching making a very high quality zip. Usually, these […]
¿Cuál es la velocidad óptima de maquina de bordar para obtener calidad óptima?
Tergantung pada sejumlah aspek, mesin jahit akan berjalan paling baik pada rata-rata 600-700 rpm.