For many years, the rotary joints used in these machines have been manufactured by Johnson-Fluiten, a supplier valued for its ability to conform to the stringent specifications required by regulations for these sensitive industries.     3V TECH is a well-known name in the segment of machinery for the chemical-pharmaceutical industry: it has been operating in this complex sector for about 50 years and has been supplying companies all over the world with standard and tailor-made solutions intended for the pharmaceutical and fine chemical sectors.   The range of machinery and equipment developed by 3V Tech is wide and ranges from tanks, heat