After-Sales Service
ZQV guarantee to the purchasers that delivered products must have met the standards and specifications described in technical drawings , all orders will have no defects in materials or workmanship within 18 months ...
Pre-sales Service
Timely reply, Professional technical recommendation, corresponding technical solution and clarification, effective and competitive quotation. ...
Our advantages
ZQV have obtained API 6D, API 607, ISO9001, EAC (GOST-R), TS certification. Developed an excellent quality control and management system to ensure its excellent quality and service... ...