GB/T 25935-2010

GB/T 12784-1991 Dispersion mixer for rubber and plastics GB/T 21189-2007 Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics GB/T 17200-2008 Technical specification for tensile, compression and flexural testing machines for rubber and plastics (constant rate of rtaverse) GB/T 25156-2010 General specifications of injection moulding machines for rubber and plastics GB/T 25155-2010 Daylight press GB/T 30200-2013 Test method for energy consumption of rubber and plastics injection moulding machines GB/T 40315-2021 Plastics—Small enclosures for conditioning and testing using aqueous solutions to maintain the humidity at a constant value GB 25431.2-2010 Extruders and extrusion lines for rubber and plastics - Part 2 :Safety requirements for die face pelletizers