... a mandrel molding (can minimize elbow thinned problem), and using the hot carbon steelProcessing, inner disc stick to shape.Wall thicknessSCH5S ... ,chemical,power,gas,metallurgy, shipbuilding, construction,etcPort processingAll the size can do plain end and beveled endspray word ... great stock of products in warehouse, which will help us to shorten delivery time once we confirming orders with ...