China Drying Network The six hot air circulating ovens developed and produced by Changzhou One-Step Drying Equipment Co., Ltd. have been accepted by customers and meet the requirements of the contract before being exported to Africa. After many times of upgrading, the oven has reached the advanced level at home and abroad, and the thermal efficiency has increased from 3% to 8% of the traditional drying room to the current 35% to 50%.
Quenched And Tempered Steel Bar
Quenched and tempered steel bar is produced by quenching and tempering which is one kind of heat treatment to get high mechanical properties and hardness. Our advantages and more services of quenched and tempered steel bar includes:
1) Wide range of diameters from 10mm to 100mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.5um
4) Good straightness: 0.5mm/m to 2mm/m
5) Good roundness: 80% of diameter tolerance
6) Diameter tolerance: -0.02mm to -0.06mm/h9, h10, h11
7) Matched further processing: Grinding, polishing, straightening
8) Anti-rusty package
9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
10) Fast delivery time
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SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.js-luggagecarts.com