国产人伦精品久久久|香港三A级日本三A级|精品一区二区免费视频|tube44学生|国产精品国产三级在线...|GAY无套GAYGAY|囯产A片又粗又爽免费视频

同力鋁業(yè)股份有限公司從事鋁合金鍛造加工,主要鍛造的產(chǎn)品有鋁合金曲柄,鏈輪曲柄等,要鍛造鋁合金可以找同力鋁業(yè)。

您身邊的鍛鋁專家

Aluminum Forging Experts Around You.

TL055

MODEL:TL055

  • CRANK MODEL:WD6 TOX
  • CRANK MATERIAL:FORGED AL-6061-T6
  • CRANK FINISH:HBK
  • BCD:130MM
  • LENGTH:165-175MM
  • CHAINRING:50/39,53/39T
  • CHAINRING FINISH AND MATERIAL:HBK+CNC,ALLOY-7075-T6
  • SPEED:10-12S
  • CHAIN LINE:43.5MM
  • Q-FACTOR:160MM
  • B.B.AXLE:?24MM/136MM

我要詢價