He aha nga ahuatanga o nga roera paninga tae?

He kowiri whakakakahu-taetïpako

Tïpako Hiko-piauau: he angiangi ake te paninga, a, ko te parenga waikura e kore e rite ki te pai o te tïpako piauau wera-wera;

Tïpako piauau wera: Ka rumakina te pereti maitai angiangi ki roto i te pati konutea whakarewa kia piri ai te paparanga konutea ki te mata.He pai te piri me te weldability o te paninga o tenei pereti piauau.
Tïpako Al-Zn-werawera:
Ko te hua kua whakakikoruatia ki te 55% AL-Zn, he pai te mahi anti-corrosion, a ko tona oranga ratonga he nui atu i te wha nga wa o te maitai piauau noa.He hua whakakapi o te pepa piauau.

PPGI coil ranei PPGL coilĀhuatanga:

(1) He pai te mauroa, a he roa ake tona parenga waikura i tera o te rino piauau;

(2) He pai te wera o te wera, he iti ake te ahua o te paheketanga i te wera nui atu i te rino piauau;
(3) He pai te whakaata waiariki;
(4) He mahi tukatuka me te mahi rehu rite ki te pepa rino piauau;
(5) He pai te mahi fehokotaki'anga.
(6) He pai te tauwehenga utu-mahi, te mahi roa me te utu tino whakataetae.