Advance Steel Tubes Ltd. Offers Seamless Structural Pipe. Advance Steel Tubes Ltd. Has been certified for ISO 9001:2000. Seamless Structural Pipe is used as structural steel tubing and pipes are handrails, columns, posts, piling, sand-wash, casing, culverts, fence, caissons, sign poles, bumpers, bracing, parking meter posts, towers, supports, rollers, etc.
