俄罗斯采购需求：推土机零件

I'm reaching out to inquire about obtaining spare parts for a specific model of bulldozer. Specifically, I need two pieces of a certain component that is crucial for maintaining its optimal performance. If you could provide me with availability, lead times, and pricing for these parts, I would greatly appreciate it. Additionally, if there are any alternatives or compatible options available, please let me know. Understanding the shipping options and potential bulk purchase discounts would also be helpful. Your prompt response will assist me in making timely decisions for our ongoing projects, so I look forward to hearing from you soon!