... Steel pipe: with great pressure, easy to get rusty, too weight to moveHDPE pipe: with low price, light ... weight more than 3million), light weight, never get rusty, long life use, and also little ... your company(shandong buoy and pipe industry company )?A1: Our company founded in 2005, and we ... production lines.A3, Our pipes have been exported to Guinea, Nigeria, Paraguay, Indonesia, Australia and so ...