... Evaluated by China electricity council gh tensile galvanized steel strandOur extra-high tensile steel strand has passed the evaluation of CHINA ELECTRICITY ... the several officially permitted manufacturers in producing extra-high tensile steel strand. 1, standardGB/T 1179, QB/HYT002, YB/T 5004 ... #,70#,72A, 80#,77B,82B3, packingwood spools, z2, iron spools4, structure 1*3, 1*7, 1*19, 1*37 We promise ...