印度采购需求：带油制动器的膨胀机

We are looking to source two types of expanders to meet our operational needs. The first one is designed for natural gas with a flow rate of 750 kg/hr, operating at an inlet temp of 46.7°C, and requires an inlet pressure of 64.42 bar and an outlet pressure of 20 bar. The natural gas composition includes a high percentage of methane and smaller amounts of ethane, propane, and butane. The second expander is for nitrogen, featuring a flow rate of 3900 kg/hr, with an inlet temp of 0°C. It requires 73.56 bar at the inlet and has an outlet pressure of 1.7 bar. This expander will process 100% nitrogen. Please provide your best pricing and lead time for these units, along with any additional technical details that might be helpful.