Kaihanga ngongo kowiri tira korekore -Liao cheng he kamupene iti kowiri tira,

Ko ta matou kamupene he mea motuhake ki te hanga ngongo kowiri tira, kowiri tira paipa tika, ka mahi ano matou i te pepa kowiri tira.

Ko te karaehe o te putorino kowiri tira he 304 304L 316 316l 2205 625 825 ect, ko te roa o te ngongo maitai he nui atu i te 4000m/coil

Ko te momo ngongo he mokowhiti, he paiherea ranei.