Specifications(M)	OD(mm)	Thickness(mm)
1.85×0.95X1	48	3--3.25
1.85 X 0.95X1.7	48	3--3.25
1.85X1.25X1.7	48	3--3.25
1.85X1.25X1.9	48	3--3.25

the material :Q235

surface: HDG