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1. The ex-factory acceptance report shall be provided for all products, and the acceptance work shall be conducted by the customer and the maintenance unit jointly.

2. Maintain operation of the quality assurance system in strict accordance with related standards, and guarantee normal service life after maintenance. The maintenance unit shall assume responsibility in case of any quality problem.

3. The quality guarantee period shall be 6 months after delivery for use. In case of any quality problem within the warranty period, the maintenance unit shall be responsible for handling or provide technical support.

4. If the customer sends the related personnel for whole process quality maintenance during the period, the maintenance unit shall make efforts to coordinate with work of the maintenance personnel of the customer.

MT76 Emulsifying oil concentrate and high-water content hydraulic fluid used for powered support and prop

MT313-92 Technical specification of hydraulic support column

MT97-92 Technical conditions of hydraulic support jack

MT312-2000 General specifications for powered support

MT/T98-2006 Inspection specifications of hose and hose kit for powered support

MT419-1995 Valves for Shield Support

MT/T587-1996 Manufacturing Technical Specification for Structural Parts of Powered Support

The major repair shop can overhaul hydraulic brackets of supporting type, covering type and support covering type as well as jack, post and valve of various models matching the bracket.