20# DIN carbon steel pipe end cap 1-standards:ASTM,BN API,et 2-material:carbon steel, alloy steel, TPetc 3-high quality 20# DIN carbon steel pipe end cap Nominal Pipe SizeDNOutside ... China.The main products include: seamless steel pipe, straight seam steel pipe, spiral steel pipe, welded steel pipe, elbow, tri -elbow, different-diameter pipe, bebded pipe, flange, etc. The main products ...