parallel gauge

Our technical parametres for parallel gauge as follows: 1.Material:40Cr,spring steel 2.parallelism:0.005mm 3.hardness:HRC54°-59° 4.Length:150/125mm 5.Net.W:18.00kgs/14.50kgs,Gross.W:18.50/15.00kgs 6.in packing:24pairs=48pcs 7.Every piece will be stamped concrete size 8:Concrete size(L*W*H) that is allogated as follows: 48pcs(24pairs) 150*8*11(16 21 26 31 36) 150*10*13(18 23 28 33 38) 150*12*15(20 25 30 35 40) 150*14*17(22 27 32 37 42) 48pcs(24pairs)125*8*11(16 21 26 31 36)