Ojiji nkịkọ na ịkpachara anya

1. Nkenkpa olukwesịrị ịdị larịị ma dị larịị, enweghịkwa ntụpọ dị ka mgbape, ọnụ dị nkọ, ịfefe ọkụ, wdg.
2. It is strictly forbidden to use cast iron or cast steel nkpa olus. The buckle body can be forged with killed steel, and the shaft pin can be machined after forging from bar material.
3. Nkenkpa olu ekwesịghị igwu ala ma ọ bụ ịgbado ọkụ iji rụzie ya. Mgbe akụkụ nke eriri ya na ihe nkedo na -emebi emebi kpamkpam, a naghị anabata ndozi.
4. Mgbe ị na -eji ya, lelee ahụ ikechi ya na mkpọchi ya, ma zere akwa akwa, nkwarụ na ike ọgwụgwụ.
5. Mgbe a na -eji ya, ekwesighi idobe oghere kwụ ọtọ ka ọ ghara inwe nsogbu, a ga -ejikwa pin nchekwa wee tinye ntụtụ.
6. Mgbe agbakọsịrị mkpị okporo osisi n'ụzọ ziri ezi, a gaghị ebelata obosara nke ikechi ya nke ọma, njikọ eri ahụ dịkwa mma.

7. Ojiji nkenkpa olusagaghị agafe ibu ọrụ akọwapụtara nke ọma.