... dipped galvanized before (or after) welding;PVC coated;Stainless steel 2. UsageIndustrial and agricultural constructions; in highway, railway, airport and so ... /8"X3/8"10.6*10.619,20,21,221/2"X1/2"12.7*12.716,17,18,19,20,21 ... .4*12.716,17,18,19,20,211-1/2"X1-1/2"38*3814,15,16,17,18,191"X1"25 ... ,11,12,13,14,15,16,172"X4"50*10010,11,12,13,14,154"X4"100*1006,7,8,9,10 ...