... one single piece steel high carbon steel Round bladekxqzda-1 Bricklaying trowel1, High carbon steel: s 55c2, Hardness: 48°--52°3, Forged from one piece ... steel4, Round blade5, Great flexibility6, Length size: 9',10',11',12'7, Handle: woodencontact ... and marketing) professional to do bricklaying knife, hand trowel, scrapers, hand saws for more than 10 years, the products ...