MATERIAL:10#,20#,45#,Q345B,ST44,ST45,ST37GR.B,X42,STPG42. STANDANDARD: ASTMA106/A53,DIN2448/DIN1629/DIN17175 Standard: DIN / ASTM / JIS / GB etc.Specifications : 6 8 10 12 14 16 18 *1--3 20 22 24 25 28 30 32 *3--8 34 36 38 40 42 45 48 *3--12 50 51 54 57 60 63.5 *3--15 65 68 70 73 76 80 83 89 *3--25 95 102 108 114 121 127 *4--35 133 140 146 152 159 168 *4--50178 180 194 203 219 245 *6--60273 299 ...