... : 1.standard:GB/T18226, AASHTO M180, etc 2.galvanized 3.powder coated 4.special shape Galvanized Highway Guardrail Shandong Zhongguan Group ... the main products cover as follow: hot dipped galvanized steel sheet in coils, hot dipped galvalume steel ... export packing or mill's standard packingSurface treatment:galvanized,bright finished,chromated,oiled, fingerprint resistanceApplication:steel guardrail ...