Standard and size of oil seals
- Jul 18, 2018 -

German DIN standard is generally divided into a, as, B, BS, C, CS and other structural forms. The type A is the ordinary external glue single lip mouth, type B is the outer skeleton single lip mouth, the C type is the outer skeleton double skeleton (box type) single lip mouth; as, BS, CS s generally represent the dustproof lip, both the corresponding structural form of the lips (with dustproof LIP) structure form.