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we promise:

while recive the the affairs about the product serivces, we ensure to give you an accurately complete  answer in an hour or rushed to the scene based on the princeple of " fixxing first, divided responsibility later".

1. Zhongtian construction machinary ,. LTD. quality target: a submit qualified rate:Component 93% or higher, parts95% or higher, customer satisfaction 90% or higher and increasing 1% every three years, no safety accident and the national legal institutions supervision and spot check the percent of pass is 100%. 

2. Product spare parts, wearing parts, zero profit guarantee!