加拿大采购需求：通风系统、空气通风系统、逆流式空气交换器、分散式热回收、能量回收通风机、ERV 空气流量

We're looking to make a significant purchase and would love to explore your offerings further. Could you provide us with detailed information on your wholesale price gradients for bulk orders? This will help us evaluate the potential for collaboration effectively. Additionally, we'd appreciate it if you could send over your product catalog. Understanding the range of products available will assist us in making informed decisions. Thanks in advance for your assistance, and we look forward to hearing from you soon!