塞尔维亚采购需求：热敏打印机、收据打印机、移动打印机、便携式打印机、标签打印机、条形码打印机

We're looking to integrate a specific thermal receipt printer into our Windows POS app. We've checked your site and found the standard Windows driver and the SDK, but we really need the OPOS Service Object DLL for proper integration. Can you provide the OPOS SO, along with installation instructions and any relevant configuration utilities? Also, please clarify which OPOS UnifiedPOS version it supports. If OPOS isn't available yet, are there other models you recommend that do support it? This will help us plan for multiple deployments. Thanks!