Cov Yeeb Nkab Hlau Galvanized

Txoj kab uas hla: 21.3mm txog 508mm
Zinc coated: feem ntau yog 200g/m2 (30um) los yog raws li qhov xav tau 200 txog 500g/m2 (30 txog 70um)
Tus Qauv: ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387. BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793
Daim Ntawv Thov: Kev Tsim Kho / cov ntaub ntawv siv hauv tsev steel yeeb nkab, Cov qauv hlau, Cov yeeb nkab laj kab hlau,
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