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I'm reaching out to learn more about the different types of toners your factory offers. Specifically, I'm interested in the various formulations and any unique features they may have. Understanding the range will help us determine the best fit for our needs. Additionally, if you could provide insights into the compatibility of each toner with different printer models, that would be super helpful. We're looking to expand our product line, so any information regarding bulk purchase options and pricing would also be appreciated. Thanks!