Please help me with my new company intro letter

Hi, it would be much appreciative if you could correct not only the grammar, but you also correct the TONE, and FLOW of this letter. I have trouble with the flow of my writing and sometimes, it just doesn't FLOW. At times, it feels like they're BULLET POINTS instead of a nice letter. Please feel free to correct the content as well or change the idea entirely if you'd like.

Thank you so much for your help!

Dear Sir,

I would like to take this opportunity to briefly introduce you to XXXXX Pty Ltd. XXXXX was initially originated from Sydney, Australia trading under AAA and BBB . As a family-owned business, we pride ourselves with hard work and dedication, and continue to provide exceptional customer service and value to our customers.

For more than 20 years, we have been constantly striving to create exceptional standards for ourselves and for our customers. With our continued efforts in providing the best value, we have created a production line that has far exceeded industry standards. Our current production line not only provides short lead times, it allows us to provide customers competitive pricing without compromising product quality. A production line that has been highly refined, many of our clients in Sydney has benefited from our process including, but not limited to, GGGG, HHHHH, KKKKK, and MMMM.

We are excited to have the opportunity to expand ourselves here in Melbourne, Australia. We hope that you would give us an opportunity to be part of your quotation process, and add us to your preferred supplier list. Feel free to contact me directly should you have any question; I am more than happy to answer any of your enquiries. My staff and I are looking forward to hearing from you soon.