Ngā koiri maitai hurihuri wera(HRC)Ko ngā koiri rino wera ASTM, i hangaia kia rite ki ngā paerewa ASTM, kei roto i ngā hua rino e whakamahia whānuitia ana i te mākete o te ao, inā koa puta noa i Amerika Te Raki me Amerika ki te Tonga. Nā ō rātou āhuatanga miihini pumau, te whānuitanga o ngā momo whiringa, me te whai hua o te utu, he mea nui te mahi a ngā koiri rino wera ASTM i roto i te hanga, te whakangao, te motuka, me te ahumahi taumaha.
I runga i te mahi ā-pūkaha me ngā whakaritenga tono, ka taea te whakarōpū i ngā koiri maitai hurihuri wera ASTM kia toru ngā wāhanga matua: te maitai hanganga waro, te maitai koranu-iti kaha-teitei (HSLA), me te maitai arumoni me te kounga-tuhi.
RŌPŪ KĪNGI
Wāhitau
Te rohe ahumahi whanaketanga o Kangsheng,
rohe Wuqing, Tianjin pa, Haina.
Ī-mēra
Ngā Hāora
Mane-Rātapu: Ratonga 24-hāora
Wā tuku: Hakihea-25-2025
