Akụkụ stamping N'ime ígwè ụwa, 60 ruo 70% bụ mpempe akwụkwọ, ọtụtụ n'ime ha bụ akara n'ime ngwaahịa emechara.Ahụ ahụ, chassis, tank mmanụ, mpempe ọkụ nke ụgbọ ala ahụ, uzuoku uzuoku nke igwe ọkụ, akpa akpa, mpempe igwe silicon ígwè nke igwe eletriki na ngwa eletriki niile bụ akara ma hazie ya.
Mpempe ụgbọ ala igwe / stampụ ụgbọ ala / ọla kọpa stampụ / stampụ ziri ezi / stampụ ọla nke ọma