We require single-acting multi-stage hydraulic telescopic cylinders for heavy-duty telescopic mast applications. Key specifications include:
- Retracted length: 1000mm (max 1130mm with eye connections)
- Extended length: 4000mm (3000mm telescopic stroke)
- Vertical pushing force: 1500kg
- Chrome-plated hardened axes
- Compact structure with 24V/48V DC hydraulic unit
- Suitable for agricultural implements and truck applications

Please provide pricing for:
1. Sample unit for testing
2. Bulk orders of 50 units
Delivery timeline and certification details required. Operation cycle requirement: 5 minutes opening/closing once daily.

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Single Solenoid valve 3/2way Model: 3V310-10-NC-A XINYANG 0.15-0.8Mpa AC 220V Port size 1/8' Acting: Internal Pilot Initial state:  Nomally Closed NC) Thread type: PT (RC)

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I want all the catalogs.