Electro-galvanized, hot-dip galvanized, and powder-coated structural pipe fittings. HULK Metal can produce electro-galvanized, hot-dip galvanized, and powder-coated structural pipe fittings for you. Powder-coated colors can be customized. We have provided customers with black, warning-colored (yellow) structural pipe fittings. You can tell the sales manager who is in contact with you if you have special requirements.