Our company service for the mining.Now I want to buy siemens products.I know you have in stock I need the product urgently.so I hope you give me answer as soon as possible. Product information as following: 1 6SC9830-OHA81 QTY:1 2 6SC9811-4BF53 QTY:1 3 6SC9811-4BC20 QTY:1