NITTO KOKI (DENSEI) Auto hinge 300 series【DIRECT FROM JAPAN】

・Each model consists of a spring hinge and a damper hinge. 310 S(silver), B(bronze), J(ivory), G(gold), Empty hinge. ・Empty Hinge consists of a empty hinge only. ・Closing force(N・m) :5.0 (311S). This video shows the installation procedure of AUTO-HINGE Flag Type 300 series.

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