1. Unique heat treatment technology to improve wear resistance. The girth gear produced by CHAENG adopts unique heat treatment technology in the casting, which optimizes the girth gear structure, improves the hardness, and greatly enhances the wear resistance and impact resistance.

2. High-strength steel material to guarantee the service life. CHAENG uses high-strength steel for girth gear casting, and optimizes the girth gear according to the transmission characteristics of rotary kiln and ball mill to ensure the stability long-term operation and prolong the service life.

3. Efficient production. CHAENG has strong production capacity of steel castings to ensure short delivery time.

As a large-scale steel casting manufacturer in the north of Henan Province, CHAENG follows the national leve-2 flaw detection standard and implemented 360° non-destructive testing system. There are German OBLF GS-1000 direct reading spectrometer, carbon sulfur analyzer, three element analyzer, mechanical performance testing machine, impact test low temperature tank, impact testing machine, UT, MT flaw detection equipment, etc., as as to achieve accurate ratio of chemical composition of cast steel to ensure the quality of steel castings.