pneumatic bottom patch fitting 1.SUS304 stainless steel with satin or polished ... have different door clamp,top clamp,curve clamp and lock clamp.Suitable for each type of the ... ,folding door ,glass hinge,spider,handle lock patch fitting,and floor spring as well as door handle,handrails.We ... can also provide measurement ,planing,guide the installation and other related services to our customers.If you are ...