... type, One Way etc.MaterialCarbon steel, stainless steel, SS-304, SS-302, Aluminum, Brass, Bronze, medium carbon alloy steel etc.Surface TreatmentZn-plating, Ni ... with industry and trade integrationMain ProductsWood Screw, Drywall Screw, Chipboard Screw, Machine Screw, Deck Screw, Self Tapping Screw, Self Drilling Screw etc.Producing EquipmentScrew machine Hexing/SX ...