We want to buy some cylinder head for Peugeot 405 (1800)and Nissan z24, We are going to travel to china that visit your company . Can you ready sample before come us? The first we want to buy only 100pcs one of them and try it in the Iranian market next we order about 500pcs one of them. Please give us 100pcs price and sample price. We want the best quality and the most reasonable. Thank you very much.