Extension Support Rings

product Overview:

Each of these extension rings is produced from strong, heat-resistant cast steel. Tough zinc plating helps to protect the rings and to combat rust.

G110 2"ID

G111 3"ID

G112 4"ID

G113 5"ID


We have 70 skillful operators, 5 machine mechanics and 31 quality inspectors, total annual output capacity in design can reach 130 millions sets.



Earth & Space Science

Human Anatomy

Laboratory Supplies

Physical Science


Customer message

Our team has been and will continue to be committed to science education industry to provide quality products at competitive prices and good services to our clients all over the world.