
Qtz50 (4810/5008) 4ton Tower Crane with CE ISO Certificate. Certified Quality: ISO9001:2008 certified with AAA level standardization and China Famous Trademark status. Market Leader: Top sales volume in China for 13 consecutive years (1999-2012) with 28% market share. Global Export: Products exported to 31 countries across Asia, Europe, Americas, and Africa. Rapid After-Sales: Immediate investigation and solution mechanism for reported customer problems. High Performance: Advanced technical parameters with reliable performance and reasonable structure. Versatile Application: Suitable for high-rise housing and high-rise industrial building construction. OEM/ODM Support: OEM and ODM services available with 8 dedicated R&D engineers. Competitive Pricing: Simple, practical design offering excellent quality at reasonable prices.