Please review our attached requirements for Urea grade Bolts & Nuts )25Cr/22Ni/2Mo; MAT spec: ASTM A312-TP310MoLN/ ASTM A312 UNS S31050) . Kindly quote us your best prices along with delivery time. 1. Terms & Conditions: - Origin of products: EU/ G7; - Manufacturer Name 2. Certificates requests: - EN 10204 TYPE 3.1 certificae issued by manufacturer (original) - EN 10204 TYPE 2.1 certificae issued by manufacturer (original) - Certificate of origin issued by Chamber & commercial dept (original) Should need further information , please let us know