国产最新黄片在线,亚洲无碼性爱一区二区,一级a性色生活片毛片99,免费一级无码婬片AAA毛片,成人毛片免费小视频

蘭溪市馳航機械股份有限公司主要生產(chǎn)鋁合金鍛件,擁有多年的鋁合金制品鍛造加工經(jīng)驗。

FB-YD(O)

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:48T,52T

CHAINRINGS MATERIAL:STEEL

PCD:130MM

CHAINGUARD:G5AA52 ALLOY

CHAINLINE:46MM

B.B.Axie:127.8MM

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:48T,52T

CHAINRINGS MATERIAL:STEEL

PCD:130MM

CHAINGUARD:G5AA52 ALLOY

CHAINLINE:46MM

B.B.Axie:127.8MM