floor spring material: iron + stainless steel door opening degree: 105 door adustment degree: 0 and 25 floor spring1,item number: VW-FS-732, pictures: 3, material of body: iron4, material of cover: stainless steel , #304 5, color of body: black or others6, surface treatment of cover: matt or mirror7, door opening degree: small than 105°c8, door adustment degree: 0 and 25°c9, accessories: with or ...