Due to the high tonnage and large span of the whole steel space frame, process and fabrication of the steel space frame shall be strictly precise.
由于整个钢网架的吨位重、跨度大，所以，对钢网架的加工制作精度方面要求非常严格。
2
According to the metallurgy quality requirement of medium and high-carbon steel, technological processes is designed based on the metallurgy characteristic of small tonnage converter.
根据中高碳钢的冶金质量要求，基于小吨位转炉的冶金特点，设计了其生产工艺流程。
3
This new method made it true to use light tonnage equipment to forge the half spherical steel shell with small metal allowance and variable sections.