... for difference working condition for the each valve pipe fitting,, so we have to redesign the products ... served as reference. Purpose:elbow is the pipe fitting Used in change the direction of the ... Elbows, 180 Deg. LR ElbowMaterial: carbon steel, alloy steel, stainless steelStainless steel include:ASTM/ASME A403 WP 304-304L ... Israel, Portugal, Malaysia, Pakistan, Argentina, etc. stainless steel pipe elbow