1. Nkewa nke fasteners E nwere ọtụtụ ụdị nke fasteners, nke nwere ike tumadi kewara n'ime ndị na-esonụ edemede dị ka udi na ọrụ: Bolt: A cylindrical fastener na eri, na-ejikarị na njikọ na anut, iji nweta a tightening mmetụta site n'ịtụgharị nut. Bolt...
1. Ihe: Nkịtị carbon structural ígwè (Q mkpụrụ ike), elu-edu carbon structural ígwè (na nkezi carbon uka ụmụ irighiri nke 20/10000), alloy structural ígwè (na nkezi manganese uka akụkụ nke ihe dị ka 2% na 20Mn2), nkedo ígwè (ZG230-4502 erughị eru na-erughị 20000-4502).
