澳大利亚采购需求：铝合金门窗制造商

I'm looking to place an order for some awning windows with single glazing in black. The dimensions I'm interested in are as follows: one set measuring 1800mm x 1800mm, another at 2100mm x 1800mm, a smaller size of 600mm x 900mm, and lastly a square option at 1500mm x 1500mm. Please let me know if you can provide these windows and any details regarding lead times, pricing, and available finishes. Your prompt response would be appreciated, as I'm eager to move forward with this order. Looking forward to hearing from you soon!