70cm applies to brick and concrete and framework 30-35cm structural column 
 80cm brick and concrete and framework 40-45cm structural column 
 90cm brick and concrete and framework 50-55cm column 
 100cm brick and concrete and framework 60-65cm column 
 70cm column of the 110cm framework for the plant and high-rise buildings 
 Framework applies to plant and high-rise buildings 120cm 75-80cm column 
 Sold by the Company through the wall bolt by the bolt rod, cast nut, bolts, nuts, washers and plastic casing, can be divided into: general type bolt through the wall, waterproof bolts through the wall and screw steel through the wall Bolt three kinds. Conical tube through the wall bolt assembly is a conical tube through the wall bolts, hex nuts and the side plate composition. In pouring the concrete wall, fastening template. For wall thickness 200mm-300mm within. The main features of taper pipe through the wall bolt cone finish, easy to disassemble. Reasonable structure design, reducing the overall quality, easy to use. Need not buried in the wall of plastic pipe, all components can be reused, reducing the construction cost. The overall tensile load of not less than 100KN. Spiral steel through the wall bolts, spiral steel bolts through the wall components, multi-functional double-sided plate, all kinds of removable waterproof through the wall component bolts, fasteners, square head bolts, nuts and wing nuts, round nuts, hex nut, sealing bolt, early dismantling, screw template legs, step by step tight, rolling machine and other products of high strength wearing wall screws, various models of high strength wearing wall screws through the wall bolts, according to user needs processing set to do so. Reliable product quality, the lowest price. 
 Step by step tight is the use of a new building appliances fast, can not only save time, improve work efficiency, can save a lot of timber, replacing the traditional method of wire bundles Law lever screw, and solid circle stopper France 
 Remarks; thickness, weight ranging 
 Step by step tight length applicable to the project in specific parts of the applicable model building 
 60cm applies to the ring beam reinforcement 30cm below the ring beam