1.Design ,manufacture ,assembly service . 2. Material : FDA approved PE . 3.No porosity in the mould. 4.Short lead time . Rotational moulding or Roto Molding which is a high temperature, low volume, low pressure thermoplastic forming process .It mainly suite for producing hollow, one piece parts such as large oil or chemical tanks, kayaks, point of purchase displays, frames, cases, furniture, ...