surface is electrolytic polished, durable and bright, non rust, non transform Medical Degassing Basket Features:1. ... it adopts stainless steel wire, surface is electrolytic polished, durable and bright, non rust, non transform2.micropoint electric resistance welding ... no salient weld spot, no weld hurts, no deckle edge and fall off, so can be used safely. 3.the gridding design ...