The whole process, crude oil in the oil type, raw oil, it is one that was filled petroleum products and acceptance of auxiliary materials, purification process, process chart for up to shipment of the product process and product, process name, management items, the management value, etc. . ③ a purification step, the reaction of the devices, process flow diagram for a process such as distillation, process control, it is obtained by filling the quality characteristics. ④ The product processes, substrates produced from the device to mix the additives were purchased, process flow diagram for the process for manufacturing the product, process control, it is obtained by filling the quality characteristics.
đang được dịch, vui lòng đợi..
