A tụrụ aro ka e mee mgbanwe na 2022 na nzukọ kwa afọ nke ISO/TC17/SC12 Steel/Continuously Rolled Flat Products Sub-Committee, e wee malite ya n'ụzọ iwu kwadoro na Machị 2023. Ndị otu ọrụ nhazi akwụkwọ ahụ were afọ abụọ na ọkara, n'oge ahụ e mere otu nzukọ otu ọrụ na nzukọ kwa afọ abụọ maka mkparịta ụka siri ike, na Eprel 2025, e webatara mbipụta nke isii nke ọkọlọtọ ISO 4997:2025 nke a na-akpọ "Structural Grade Cold Rolled Carbon Thin Steel Plate".
Ọkọlọtọ a bụ mgbanwe ọkọlọtọ mba ụwa ọzọ nke China duziri mgbe China weghaara ọkwa onyeisi oche nke ISO/TC17/SC12. Mwepụta nke ISO 4997:2025 bụ ọganihu ọzọ na China na-esonye na ọrụ nhazi mba ụwa n'ọhịa nke efere na mpempe ígwè mgbe ISO 8353:2024 gasịrị.
E tinyela aka n'ihe gbasara ígwè carbon na ngwaahịa eriri ígwè a na-akpọ "cold rolled metal plate" iji melite ike na ibelata ọkpụrụkpụ, si otú a belata ibu nke ngwaahịa ikpeazụ, iru ihe mgbaru ọsọ kachasị elu nke ịchekwa ike na mbelata ikuku, na imezu echiche mmepụta nke "igwe akwụkwọ ndụ akwụkwọ ndụ". Ụdị ọkọlọtọ nke 2015 maka ike mmepụta kachasị eji na ahịa nke 280MPa ígwè akara adịghị. Na mgbakwunye, ihe dị na teknụzụ nke ọkọlọtọ ahụ, dị ka oke elu na ibu ogbe, anaghị emezu mkpa n'ezie nke mmepụta ugbu a. Iji mee ka ojiji nke ọkọlọtọ ahụ dịkwuo mma, Metallurgical Industry Information Standards Research Institute haziri Anshan Iron & Steel Co. ka ọ tinye akwụkwọ maka ọrụ ọkọlọtọ mba ụwa ọhụrụ maka ngwaahịa a. N'ime usoro nhazigharị ahụ, e kpebiri ihe achọrọ maka teknụzụ nke ọkwa ọhụrụ ahụ site na mkparịta ụka ya na ndị ọkachamara si Japan, Germany na United Kingdom ruo ọtụtụ oge, na-agbalịsi ike imezu ihe achọrọ maka mmepụta na nyocha na mba ọ bụla ma gbasaa oke ojiji nke ọkọlọtọ ahụ. Mwepụta nke ISO 4997:2025 "Egweri Carbon Thin Steel Plate" na-akwalite akara na ọkọlọtọ ọhụrụ nke China nyochara ma mepụta n'ụwa.
Oge ozi: Mee-24-2025
