Product Name: Stainless Steel Coupling
Type: Coupling
Material: SS 316
Inner Diameter: 180 mm
Outer Diameter: 200 mm
Length: 200 mm
Wall Thickness: 10 mm
Ends: Plain Ends
Standard: As per Customer Drawing

Source: https://www.landee.cn/stainless-steel-couplings-ss-316-id-180-mm-od-200-mm-pe.html