4 bar friction hinges
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Manufactured from Stainless Steel SUS 304/201 with cold rolled track and deburred link strip.
Sliding Brass Shoe is friction adjustable with built in nylon block.
All rivet joints are spun-riveted with special nylon washers in between for extra smooth action.
Manufactured from high grade Austenitic (304) stainless steel, the all-metal friction stay provides solid quality and has been designed to ensure smooth operation.
Tested to minimum 50000 cycles, Complies with Chinese Standard GB/T3888-1999
Heavy duty friction stay for use on large timber and PVC-U casement windows, Separate restrictors or support arms are recommended.