<prompt> Translate the following text to EnglishKwa mfano, kiwango cha kazi ya boilermaker inaweza kuwa tofauti kutoka kwa mradi mmoja hadi mwingine, na inaweza kuwa karibu asilimia 40 hadi 50.  <response>: However, the percent of labor for boilermakers will vary from one project to another, with 40-50 percent 