https://www.tjtgsteel.com/fy/astm-a249-a269-304-304l-316-316ll-seamless-stainless-steel-coil-tube-manufacturer.html
304 304L naadleaze roestfrij stielen spiraalbuizen fabryk en fabrikanten | Sihe
Stainless steel tubing in coils and on spools used for control lines, chemical injection lines, umbilicals as well as hydraulic and instrumentation systems....
spiraalbuizenfabrikanten