产品介绍：
tr no.:tr509 ref.length (mm):φ23×138.5/90° parts core:9002# parts rubber grommet:rg46 parts nut:hn17 parts cap d-cap tr no.:tr510 ref.length (mm):φ23×157.5/90° tr no.:tr511 ref.length (mm):φ23×126/90°