Àgwà ha gụnyere:
Ike dị elu: A na-ejikarị ígwè dị elu arụ ọrụ okporo ígwè, nke nwere ike na ike dị elu ma nwee ike iguzogide nrụgide na mmetụta nke ụgbọ okporo ígwè. Ịgbado ọkụ: Enwere ike ijikọ okporo ígwè n'ime akụkụ dị ogologo site na ịgbado ọkụ, nke na-eme ka nkwụsi ike na nchekwa nke okporo ígwè dịkwuo mma.
Ụkpụrụ maka okporo ígwèA na-esikarị na International Organization for Standardization (ISO) na ọkọlọtọ ụlọ ọrụ ụgbọ okporo ígwè nke mba ọ bụla ekpebie ya. Lee ụfọdụ ọkọlọtọ ụgbọ okporo ígwè a na-ahụkarị:
GB Standard Steel Rail, AREMA standard string trel, ASTM standard string trel, EN standard string trel, BS standard string trel, UIC standard string trel, DIN standard thread ígwè, JIS standard thread ígwè, AS 1085 thread ígwè, ISCOR thread ígwè.
Oge ozi: Eprel-03-2024