He kaiwhakarato ngaio a sanonpipe, he kaihanga hoki i ngā kaupapa paipa maitai kore hononga i Haina. Ko āna hua matua kongā paipa kōhua, ngā paipa hinu, ngā paipa miihini, ngā paipa tongi me te matū, mengā paipa maitai hanganga kore honongaKo ngā rauemi matua ko:SA106B, 20 karamu, Q345, 12 Cr1MoVG, 15 CrMoG, Cr5Mo, 1 Cr9Mo, 10 CrMo910,A335P5/ P9 / P11 / P12 / P22 / P91 / P92