190cm 240cm Omer Hand Spear Carbon Fiber Polespear with Slip Tip Diving Scuba Pole Spear Harpoon Traveler

190cm 240cm Omer Hand Spear Carbon Fiber Polespear with Slip Tip Diving Scuba Pole Spear Harpoon Traveler Parameters: Material: stainless steel tip ,Carbon Fibre poleWeight: 900g Whole Length: 190cm,240cm Diameter: 7mm for tip ,14mm for pole packing :one set/lot  The slip Tip is made of 17-4PH stainless steel, which has magnetism due to heat treatment. This is normal. 17-4PH stainless steel has high hardness, corrosion resistance, and will not rust in seawater.Relevant information can be mentioned in Google or other relevant professional papers.It canbe testin seawater to see if there is any rusting issue. The poles are made of Carbon fiber .Advantages of Carbon Fiber Carbon fiber composite materials have higher fatigue strength, with the fatigue strength of steel and aluminum being 30-50% of the tensile strength, while carbon fiber composite materials can reach 70-80% The significant characteristics of carbon fiber are light weight, good fiber size, and high tensile strength, as well