... .15years professional experience 3.lots stocks of rubber flexible joint 2011 hot sales NB flanged flexible rubber joint1.easy installment2.15years ... (45)Vacuity(mm/Hg)53.3(400)86.7(650)100(750)Applicable temp. C-15-+115 C, Speciality reach to ... . Compressed air,water,sea water,hot water,weak acid,etc. 2011 hot sales NB flanged flexible rubber joint