... :Henan Huayang Iron&Steel CO.Ltd mainly produce generous steel plates with low alloy and high strength and high toughness steel ... than 3000brands, including more than 40 fill a blank in China,more than 80 variteies of successful subtitution import, more than ... Non-destructive testing standard:We could produce inspection according to China(JB4730,GB/T2970),United States(A435,A577,A588),Japan(JISG0801 ...