Founded in Rochester in 1958 with a single tube mill purchased from General Motors, MARKIN Tubing now manufactures precision small-diameter welded carbon steel tubing for OEM applications at its Western New York operation. Its 200,000-square-foot facility includes eight tube mills and in-house slitting, while its proprietary Galfan® and G2 coatings remain a longstanding specialty for demanding fluid-transfer and automotive uses. MARKIN’s Wyoming facility is certified to IATF 16949 and ISO 9001.
IATF 16949:2016
ISO 9001:2015
ISO 14001
Welded Tubes, IncOpened by the Lewis family in Orwell in 1958, Welded Tubes has built its identity around more than six decades of precision tube manufacturing and close technical support for OEM customers. The locally rooted company is known for small-diameter, heavy-wall steel tubing, and it became part of Lock Joint Tube in 2020. Welded Tubes is IATF 16949:2016 certified.ORWELL, OH
International TubeSince 1999, Royersford-based International Tube has manufactured precision small-diameter metal tubing and custom-fabricated components for demanding medical, aerospace, industrial, and electronic applications. The company works with engineers from concept through production, producing miniature tubing with tight tolerances and smooth, clean bores, including sizes down to a .005-inch inner diameter. Its quality system is certified to ISO 9001:2015.ROYERSFORD, PA
Jackson Tube Service, IncFounded by the Jackson family in 1972, Jackson Tube Service manufactures welded carbon-steel tubing from its Piqua, Ohio, facility. Still Jackson-owned and operated, the company draws on four generations of family tubing experience to handle specialized shapes and demanding applications, with both high- and low-volume capability. Its customer-focused team serves industries ranging from automotive to agriculture and maintains ISO 9001 certification.PIQUA, OH
AccumetricsSince 1979, Royersford-based Accumetrics has manufactured precision small-diameter metal tubing for medical, aerospace, electronics, and industrial applications. The company focuses on ultra-small tubing with tight tolerances and smooth bores, supporting projects from prototype development through production. Its quality systems are certified to ISO 13485:2016, ISO 9001:2015, and AS9100D standards.ROYERSFORD, PA