Use the example below as a guideline.
“Dear hiring manager,
I hope this email finds you safe. I wish to apply for the Technical Learnership opportunity available in your company (Worthy Engineering Experts) which I saw being advertised at Mulalorakh Careers website.
I hold Welding trade test and red seal certificates as my marketing tool and I believe I have met the requirements as stated on the advert.
The attached documents below are my CV, my certified supporting documents together with the application form as requested on the advert.
I HOPE THIS SHALL HELP SOMEBODY OUT THERE!!