Min. Order Reference FOB Price
100 Pieces US$8.00-12.00 / Piece
Product Description
Specification Bar Material 40Cr or 45# steel API J55 N80 Helix Plate material ASTM A36 hot rolled plate helices thickness 3/8" and 1/2" inch Leading edge sharpened Corrosion protection ASTM A153 standard for hot dipped zinc coating A better conventional solid steel extra high strength ...