PERT 45degree elbow for heating pipe 1.material:PERT 2.size:L16,L20,L25, ... 3:color:any color 4.Do OEM PERT 45degree elbow for heating pipe1.material:PERT2.size:L16,L20,L25,L323:color ... color4.Do OEMApplication: 1. Ground heating system, it is suitable for such heating as the living room, bedroom, public bathroom, swimming ... the beverage, milk, etc. in food industry. PERT 45degree elbow for heating pipe