Rock Valves are manufactured with associates who hold an
ISO9002 certificate.
Rock Valves consist of two
types of material, one type is for the intake valve which consist of JIS
SUH3(EN52) and the other is for the exhaust valve which consist of JIS
SUH35(21-4N) + TIP (SUH3(EN52).
Rock
Valves are all treated with a nitride coating. An extensive coverage of Rock
Guides are also available along side our Rock Valves.
