人妻熟妇乱又伦精品视频,女人与公拘交酡免费网站,另类内射国产在线,曰韩人妻无码一区二区三区综合部

"Machine Age" [double] the differential gear
Double gear differential relates to a shower in the glass industry plate fixed to the wall or a similar device on the object, in particular to provide a fixed glass plate supporting structure.
Double gear differential structure comprises a metal plate fixed to the metal mounting plate with two adjacent and perpendicular to each other's side at least, one side of which is fixed by winding mechanism is fixed to the wall, the other side is provided with a connecting member activity means for fixing the glass plate.
Double differential gear device comprising a double gear, a fixed rack, a movable rack, shaft, bearings and bearing housing; wherein the double gear sleeved on the shaft, bearings and bearing disposed double Zhou catch-gear between two gears. Two double gears and gear are fixed rack, the rack engagement activities; double-gear and rack fixed to the engaging movement of the other movable rack gear while meshing with a double movement.
Jiangsu New Silver Leaf Transmission Ltd Recommended: mining machinery gear http://www.kjiu5.cn/products-detail.asp?cpid=402