1)Size:OD220mm,height 17mm 2)Material: 2mm steel 3)Surface:Yellow zinc plated 1, Our OEM service scope 1) Common stamping products 2) Precision stamping products 3)common castings 4)Precision castings 2,Package designed as your requirements 3,Certifications -- ISO9001:2008 4,Our factory5,After-sales service Process: 1)Please contact our After-sales service department in time within 30days after ...