Waea Waea Piauaua
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ASTM A475 Paerewa Waea Waea Piauau
Ko te ASTM A475 te paerewa mo te taura waea rino piauau kua whakapumautia e te American Society for Testing and Materials.
ASTM A475 - Kei roto i tenei tohu nga tohu e rima o te whenu waea rino kua pania ki te konutea, Utilities, Common, Siemens-Martin, High-Strength, and Extra High-Strength, e tika ana mo te whakamahi hei waea tane me te karere. -
BS183:1972 Paerewa Waea Waea Piauau
Ko te BS 183:1972 te Paerewa o Ingarangi e whakaatu ana i nga whakaritenga mo nga whenu waea piauau-whanui.
BS 183:1972 Whakatakotoranga mo te whenu waea maitai piauau