... used in tyres, cycle tire, rubber overshoes, plastic hosoe tapes, conveyors, rubber tubes, black sole, rubber lines, rice polishing rollers, ... matter %≤0.60≤0.75≤0.90GB/T 6737-1997Ash %≤0.50GB/T 4498-1997 AOrganic acid %4.50- ... -1998Mooney viscosity 50ML(1+4)10045-5544-56GB/T 1232.1-2000Compound 50ML(1+4)100≤93300% ... 145MPa, 300%Modulus25minM±2.0M±2.5GB/T 8656-1998 A35min20.6±2.020.6±2.550min21 ...