China 40-Foot Self-Supporting Steel Outdoor Antenna Commercial Signal Telecom WiFi Antenna Support Tower, Find details about China Steel Pipe Tower, Single Tube Steel Tower from 40-Foot Self-Supporting Steel Outdoor Antenna Commercial Signal Telecom WiFi Antenna Support Tower
China-GB | America-ASTM | Equivalent |
Q235 | Grade D | SS400,S235JO |
Q345 | Grade50[345] | S355JR |
Q420 | Grade60[415] | S420NL |
Q460 | Grade65[450] | S460NL |