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。

B412-MX（O）

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:38T/26T,38T/24T

OUTER CHAINRING:ALLOY "HBK"ANODIZED

INNER CHAINRING:STEEL

COMPATIBILITY：10S

PCD:104/64MM

CHAINLINE:49MM

B.B.Axie:133.6MM

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:38T/26T,38T/24T

OUTER CHAINRING:ALLOY "HBK"ANODIZED

INNER CHAINRING:STEEL

COMPATIBILITY：10S

PCD:104/64MM

CHAINLINE:49MM

B.B.Axie:133.6MM

產(chǎn)品中心