"galvanized carbon steel pipe small diameter"

20 45 직류 전기로 자극된 탄소강 배관 이음새가 없는 탄소 스틸 튜브 두꺼운 벽 작은 직경

20 45 Galvanized Carbon Steel Pipe Seamless Carbon Steel Tube Thick Wall Small Diameter Cutting 20#45 Seamless Steel Tube, Thick-Walled Carbon Tube, Small-Diameter Seamless Tube Material: 45# 20# 40# 40CRMO 42CRMO Customization: support on-demand customization Business scope: sales of metallurgical ...