Replacing the traditional method of molding which used the wooden board and the steel plate, this plastic case used the craft of one-time rotational molding. The advantage of this method is following: Preventing the impact, erosion. Having the higher intensity, being convenient to carry, not easy to be damaged. The field operations case can keep the temperature to -13º F, which conform to the country sanitation standard and also has the beautiful appearance. Our company manages this aspect strictly according to the international quality system ISO9001-2000, and has obtained consistent high comment of our customer.