https://govtribe.com/category/unspsc/31321600-sonic-welded-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321700-bolted-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321300-riveted-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321400-welded-or-brazed-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31320000-fabricated-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321100-bonded-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321200-solvent-welded-bar-stock-assemblies yearly 0.8 https://govtribe.com/category/unspsc/31321500-ultra-violet-welded-uv-bar-stock-assemblies yearly 0.8