● ʻO kēlā me kēia wili paipu he lōʻihi mau loa me ka ʻole o nā welds orbital.
● Ho'āʻo ʻia kēlā me kēia pahu paipu i ka hydrostatic me ke kaomi ʻana.
● Hiki ke ʻike ʻia ka hōʻike ma ka pūnaewele e nā mea nānā ʻekolu (SGS, BV, DNV).
● ʻO nā ho'āʻo ʻē aʻe he hoʻāʻo eddy o kēia manawa, kemika, hoʻopalapala, flaring, tensile, yield, elongation, hardness for the material quality.