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A na-eji ihe a na-emepụta tupu akpụpụta nke ọma iji mepụta ihe mgbochi breeki emebere nke ọma. Nzube bụ tupu pịa akụrụngwa maka thermoforming n’ime blocks, bụ adaba maka nri n’oge na-ekpo ọkụ na ịpị usoro, na ọ nwere ike ibelata ihe oghere nke na-ekpo ọkụ na ịpị ebu. oghere.

Njirimara nke ebu a bụ:

(1) Nwere ike ịmịpụta ngwa ngwa

(2) Ntụnye akpaaka

(3) Mwepu: Enwere mperi ntule, na ogo preform nke ọ bụla dịtụ iche

Isi paramita nke ebu bụ ndị a:

Ngwaahịa dị: