YGP Cost-effective 49 Chain Excavator Chain Rail for Sany 13914437 SY305/SY335/SY365/SY375
Wear and corrosion resistant mine quality impact and pressure resistant preferred material
The optimized production material and process of easy selection chassis parts are made of high-strength alloy tempered steel.
Structure stress treatment, the overall quenching thickness is more than 5 mm, so that the product performance is more stable, more wear-resistant
