... 800 Standard: GB3091-2001, ASTM A53, ASTM A106 commodity: hot dip galvanized steel pipeSpecification: 10*10-800*800Standard: GB3091-2001, ASTM ... A53, ASTM A106galvanized coating: as customer's demandhot dip galvanized steel pipe is widely used in decorational fields, with ... ., LtdPhone:86 -022 -59522267Fax:86 -022 -59522259Mobile:13642081084 hot dip galvanized steel pipe/hollow section /SHS