... steelCoating : high qulity nylon plastics/resinStyle : "o","8","9" style or irregular shape Color : white ,black,any other optional color,any ... ,13mm,14mm,15mm,16mm,18mm,19mm,20mm,25mmExtensive use : lingerie,underwear,brassiere,swimwear OEM: acceptable Product Unique : durability,corrosion proof,high temperature ...