美国采购需求：真空管吊具

We are currently in the market for a versatile bag lifting device designed for easy relocation across various mezzanine levels. The device should be capable of efficiently lifting 55lb bags while ensuring safety and ease of use. Additionally, we would like to know about the features, weight capacity, and any customization options available. It's important for us that the device is durable and meets industry standards. Please share your recommendations and any additional information that may help us in making an informed decision. Looking forward to your prompt response.