... 1.With:cabinet ,up open door Gas spring pass SGS test Passed over 100,000 open-close test Load bearing: ... built9, For proper strength based on weight of door panel10, Accessories:3# Plastic adjustable stopper Round ... all kinds of cabinet door.1, Gas spring pass SGS test for 100,000 open close times.2, ... custom-built for proper strength based on weight of door panel7, Certification : SGS, ISO 9001:2000 ...