Corrugated Pipe Culvert, it is a kind of engineering commonly used in the shape of wave-like pipe fittings, carbon steel, stainless steel, galvanized, aluminum, etc. as the main raw material composition. එය ඛනිජ රසායනික, උපකරණ, අභ්යවකාශ, චාරිකාවලදී භාවිතා කළ හැකිය ...