... 2008 standard OEM/ODM are welcomed industrial o-ring kits:Product all kinds of industrial o-ring kits.Good quality and ... model no: 5A[2]30 sizes, total 382pcs, JIS B 2401 standard, model no:5B[3]30 sizes, total 386pcs ... , JIS B 2401 standard, model no: 5C[4]32 sizes, total ... model no:8B[5]32 sizes, total 419pcs, JIS B 2401 standard, model no: 8C Non-standard size is ...