[ edit ] the wright brothers ' first flight in the industrial revolution in the th century saw a number of inventions fundamentally change transport. with telegraphy , communication became instant and independent of the transport of physical objects. the invention of the steam engine , closely followed...
hvac systems, with required air flows and hepa filtration according to desired iso class and containment needs. the hvac is complete with the t and rh control system; it is possible to design the system assuring special thermo-hygrometric conditions, down to rh< %. flooring, with pvc mats or epoxy resins...
pesticides, personal care products, and plastics. nonylphenol has attracted attention due to its prevalence in the environment and its potential role as an endocrine disruptor and xenoestrogen, due to its ability to act with estrogen-like activity. specifications parameter value molecular formula mixture of...
zinc partners about history iso certification company directory contact best of both worlds hb chemical provides the resources of a big company with the personal touch of a small one. why hb chemical hb chemical started in with a passion for selling and an emphasis on customer care. since its inception...