... .SS316,304 Galvanized steel material 3.Hand polish,delta flipper anchor 1.Stainless Steel Folding Grapnel Anchor ... ,folding anchor,delta flipper anchor,ship anchor delta2.Material:SS316,304 ... , machining, turning, milling, drilling, thread cutting.Surface treatment: glass rays electrolytic polishing, coating, varnishing, bromzing. Passivating, grinding, ...