... T3901, ASTM A53-2007Surface Treatment: Hot dip galvanized (220g-500/sqm), Pre-galvanized (80g-120/sqm) Black Painted (varnish ... coating), bared, oiledEnd Treatment: Threaded, beveled, plain, screwed, etc.End protector: plastic cap ... pipe, irrigation pipe, structure pipe, fluid pipe,fence post, construction and so onMain Market:South America, Africa, mid ...