印度尼西亚采购需求：双杆窗帘轨道，现代风格窗帘五金，壁挂式窗帘杆，双窗帘支架，当代风格窗帘杆，双窗帘轨道

I'm interested in sourcing stair brackets and door fittings specifically designed for balcony railing hardware. Please provide me with information on the different options available, including materials, finishes, and any specific features that might be beneficial for outdoor use. Additionally, I would like to know about your minimum order quantities, lead times, and if you have any catalogs or technical specs I can review. Feel free to send over any recommendations you might have based on current trends or popular choices in the market. Looking forward to your response!