c40 c45 SRB 호닝 h9 내벽 연마 무계목 탄소강 튜브 (공기압 파이프용)
Video Description
Discover the C40 C45 SRB Honed H9 Inner Wall Polishing Seamless Carbon Steel Tube, designed for air pressure pipes. This high-quality tube features precision honing for superior surface roughness (Ra0.4) and strict tolerances (H9). Ideal for hydraulic systems and pneumatic control valves.