Size:DN8-DN750 SMLS, 8NB-750NB SMLS, 1/4inch-30inch SMLS Above 30inch will be supplied as welded one, one weld seam or two weld seam. Degree:30deg, 45deg, 90deg Main material:A403 WP304,WP304L,WP316,WP316L,duplex stainless steel S32205,S31803,S32760,SS317L,special sttel INCOLOY800,MONEL 400,B564 N8825.