... 3.Surface: high polish 4.different sizes:150mm*57mm Marine Hardware Stainless Steel Prop 1.Material: stainless steel 316 ... Process: lost wax process, silica sol process casting5.Usage: used as marine parts, Machinery parts,yacht fitting, ship product, hardware, ... trust and support!We are a manufacturer of stainless steel marine hardware, Looking forward to receiving your detailed inquiry. We ...