... 1. fully automatic production 2. Professional service team heavy load 316 stainless steel compression springFeatures of 316 stainless steel ... , alloy spring steel, refractory steel, brass, bronze, etc Load type compressionFinish Zinc-plated, nickel-plated, chrome-plated, silver-plated ... endsActive CoilsThe coils which are free to deflect under a force.Wire diameter 0.01~ 10mmStyle of EndsOpen / Closed; ...