... stainless steel, or steel with chrome plat 3.Satisfy with ASTM E-11 Soil test sieveStainless steel soil sieves & copper soil sievesNew standard stainless steel and brass sieve ... E113 Materials: brass, stainless steel, or steel with chrome platedFull set of sieve:1. Asphalt aggregate sieve (15units): 0.075mm, ... , 37.5mm, 63mm, 75mm,3. Old standard stone sieve:(12units) 2.5mm, 5mm, 10mm, 16mm, 20mm, ...