... plug, finish, etc process. At the intersection point of flat steel and horizontal pole, press horizontal pole ... copper plate, aluminum plate.Specification:Size of bearing flat steel: 25x3mm, the center space: 30mm, 40mm, 50mm, 100mm ... steel bar grating: Common type: when the steel bearing flat-steel bar is low pressure lock steel ... 5060.7 69.1DGL405/30/ 100 5068.2 76.6DGL455/30/ 100 5075.7 84.0DGL505/30 ...