resistant to low concentration of acid and alkali, high elasticity, not easy to age, long service life; high resistance. . . . . 2 0 2 0 0 6 0 9 the natural vulcanization phenomenon caused by long-term storage of rubber pipes in an environment with corrosive gases or long-term exposure to sunlight is called rubber aging phenomenon. it is mainly manifested as increased weight, volume expansion, . . . see more recommended products for winding and braided hose chinese 2 provided only 30 and
