Frp Tubular Membrane Housings 4in, 8in - ChengdaHuamo ( China ) - Offers to Sell and Export - Thursday 20 February 2020 6:57 am - frp tubular membrane housings 4in 8in key features operating temp range 10°c 49°c test pressure 1 5x design pressure operating ph range 3 – 11 cleaning ph range 2 – 12 less ...