type:Plain washer standard type|Plain washer heavy duty|Flat washer wide type|Flat washer narrow type|Spring washer standard type
material:SS400|Carbon steel|SUS304|SUS316|SPCC|SPU|SWRH57
Surface treatment:galvanize|nigrescence|-
species:gasket
material:65Mn(spring steel)|SUS304|SUS316
Surface treatment:galvanize|nigrescence|-
species:gasket
type:Standard spring washer
material:SS400|Spring steel|SUS304
Surface treatment:nigrescence|dacromet|-
species:gasket
type:Conical spring washer
material:65Mn(spring steel)|SUS304
Surface treatment:nigrescence|-
species:gasket
type:Corrugated elastic washer
species:gasket
type:Carbon steel lock washer
material:SS400
Surface treatment:nigrescence
species:gasket
type:Double stack self-locking washer
material:Stainless steel
hardness:HRC49~
species:gasket
type:Double stack self-locking washer
material:Carbon steel
Surface treatment:dacromet
hardness:HRC44~
type:Inner serrated washer|Outer serrated washer
species:gasket
material:SUS304
Surface treatment:-