产品描述
功能：测量左右中梁合口平行差Measure parrallel difference in locking positions of right and left center beams .
功能：测量左右中梁合口平行差Measure parrallel difference in locking positions of right and left center beams .
功能：测量左右中梁合口平行差Measure parrallel difference in locking positions of right and left center beams .
