1. Materials: stainless steel, carbon steel, alloy steel and duplex steel

2. Size range:

Welded: 1/2 to 48 inches

Seamless: 1/2 to 12 inches

3. Standards: ASTM, JIS, DIN, BS, JIS B 2309 (30 to 300su)

4. Wall thickness: 5S to 160S

5. Customized requests are accepted