After check with engineer & purchasing .We found out that the over cost price come from the shop that giving us credit but they also offer the credit price (high price & we over high spec then the real job). This price have been agreed by purchasing but we still wondering that if we found out that the cost from this shop expensive then our sale price. Why we still order and no one inform me (the seller) ? We just let this happen?
We expect that next time we would like to get together to select the shop. Before we order In order to be able to control costs better than this.