Product Description Full Plastic Flange Male Coupler  Suitable for chemical tanks to transport corrosive goods .    Product details  Material plastic Media corrosive goods Color black     Other road tanker equipments  Manhole covers for fuel oil tank or chemicals tank .Vapor recovery valve and adaptors .Overfill prevention probe and socket .Emergency bottom valve .API … Continue reading China Best Sales Pipe Fittings Male Flange Couplings flange coupling