tools. it's even used to investigate the characteristics of everyday materials. the stress stored inside a material can create a colourful fringe pattern under the right circumstances. photoelasticity for a ripped film of clear plastic shows that the unstressed part of the film is homogeneous in colour...
plants - liwa complex expansion and development of the borouge complex expansion of the batangas petrochemical complex socar polypropylene and polyethylene plants fertilizers yara urea granulation plant fertilizer complex iowa kingisepp ammonia production plant kima fertilizer complex oil & gas refining...