Technical analysis of the differences between round and square hatches of high -strength cast iron 1. Construction and mechanical properties - round hatches of round hatches have a suspicious structure, ...

The role of anti-badges 1. Design features of anti-badges have the following technical characteristics:-Material: High-strength cast iron with spherical graphite Qt500-7 R ...

Cast iron hatches with spherical graphite are infrastructure products made of high -strength cast iron. Thanks to the spheroidization and modification process, a structure with Sha ... is formed in the material

A comparative analysis of the advantages of anti -estate hatches and ordinary hatches comparison of the structure and bearing capacity 1. Graduation of ordinary hatches is a burning supporting structure: traditional hatches of ...

Advantages of cast -iron cover covers with spherical graphite compared to other types of One 、 Advantages of mechanical properties 1. Eye strength and plasticity: tensile strength ...

Why in city roads it is necessary to use cast -iron lids of wells with spherical graphite? one 、 excellent mechanical properties 1. Enough strength and bearing capacity: the limit of the strength ...