... 1,High grade buckle 2,Skillful workers 3,ROHS,SGS All specifications: NO. Size30/35/40mm,or other sizesMaterialStainless steel, ... a long-term business with our customer and partners,all following types term are available for us based on different production ... 12. Copyright protected for clients:We protected and non-disclosure all OEM designs and relevant for clients according to clients' requirements ...