ASME BPE Certified High-Purity Tubing

WSG is the first domestic manufacturer to obtain URS certification, supplying high-purity hygienic tubing solutions to global biopharma customers including Samsung Biologics, Celltrion, Merck, Cytiva, and CSL.

Technical Specifications & Compliance
Premium Raw Materials	Using only top-tier raw materials from Korea, the US, and Europe. Our proprietary WSL (Welded-as-Seamless) technology ensures material integrity equivalent to seamless tubes.
Global Standards	Manufactured with 316L stainless steel, fully complying with the latest ASME SA249, ASTM A269, and ASTM A270-S2 standards.
European Market Specs	Continuous support for DIN 11866-1.4435 BN2 Reihe B material grades tailored for European projects.
Extensive Size Range	Maintains full inventory across all sizes from Outer Diameter (OD) 1/4" (6.35mm) up to 6" (152.4mm).
Ultra- Precision Surface	SF1 (Mechanical):ID Ra ≤ 20μin (0.5μm) max \| OD Ra ≤ 32μin (0.8μm) SF4 (EP): ID Ra ≤ 15μin (0.4μm) max \| OD Ra ≤ 32μin (0.8μm)
Corrosion Resistance	SF4 products treated with electropolishing (EP) provide exceptional corrosion resistance in sterile bioprocess environments.

Approved by Samsung Biologics

ASME BPE Certified High-Purity Tubing

WSG is the first domestic manufacturer to obtain URS certification and ASME BPE certification (#109), supplying high-purity hygienic tubing solutions to global biopharmaceutical customers including Samsung Biologics, Celltrion, Merck, Cytiva, and CSL.

Technical Specifications & Compliance
Premium Raw Materials	Using only top-tier raw materials from Korea, the US, and Europe. Our proprietary WSL (Welded-as-Seamless) technology ensures material integrity equivalent to seamless tubes.
Global Standards	Manufactured with 316L stainless steel, fully complying with the latest ASME SA249, ASTM A269, and ASTM A270-S2 standards.
European Market Specs	Continuous support for DIN 11866-1.4435 BN2 Reihe B material grades tailored for European projects.
Extensive Size Range	Maintains full inventory across all sizes from Outer Diameter (OD) 1/4" (6.35mm) up to 6" (152.4mm).
Ultra-Precision Surface Finish	SF1 (Mechanical Polish): ID Ra ≤ 20μin (0.5μm) max \| OD Ra ≤ 32μin (0.8μm) SF4 (Electropolish): ID Ra ≤ 15μin (0.4μm) max \| OD Ra ≤ 32μin (0.8μm)
Corrosion Resistance	SF4 products treated with electropolishing (EP) provide exceptional corrosion resistance in sterile bioprocess environments.