- Complying with European Standard CE/EN1154,which required durability test up to 500,000 cycles
- Fully concealed into the bottom of timber and steel door leaves
- No excavation being required
- Easy installation with simple steps on assembling.
- High corrosion resistance aluminium body
- Closing speed adjustment valve at the visible side of the body
- Fixed closing power EN size 4
- Aesthetic round base with angle adjustable screws
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