爱尔兰采购需求：有氧运动器材、动感单车、商用跑步机、家用椭圆机、立式健身车、踏步机

We are looking for high-quality leg extension and leg curl machines. Specifically, we need a weight stack capable of handling 100-120kg. The construction should utilize 3mm thick steel for durability, along with cables rated for over 900kg that are PVC coated. We are also interested in pull mechanisms that are either nylon or aluminum with a protective coating to ensure longevity. Additionally, the machine should feature a smooth cam operation, utilizing either 50x100mm or 75x100mm oval tubing for the frame. A 2 or 3-layer finish coating is essential to withstand wear and tear, and for the pulleys, we are looking for a thickness of 5-6mm. Please provide your best quotes and any additional specifications that meet these requirements.