Motor Engine Oil Caps Compared with the traditional plastic cap, the finger-pressing iron cap has stronger sealing performance. Its iron ring seal design can well protect the liquid in the tank, because the lid cannot be opened without destroying the iron ring seal, which can prevent the liquid in the tank from being damaged. The phenomenon of changing clothes, being extracted, mixing with foreign objects, etc. Product Description Product Name: Tinplate finger press metal caps Material: Metal tinplate Size: Standard/Custom(height can be adjusted) Application: Packing engine oil,machine oil,paint,glue,white coating,ink,solvent or other chemicals Color: silver , plain,red,white,ect…