water pipe flang Size: from 1/2 to 200 inch ( ... EN, JB, GB, HG, UNI, API CS,SS... water pipe flang Technics: Forged Size: from 1/2 to 200 inch ... Party Shape: Equal Usage: connecting pipe line and keep its leakproofness; convenient for replacing pipe line; easy to separate and ... check the situation of pipe line; easy to seal pipe line, such as oil, petroleum, gas, chemical industry, nuclear power station, ...