NINGBO OLAI Engineering Machienry Company (JINYAO Company) is
a manufacturer specialized in designing and producing high quality lightconstruction machinery in Ning bo city, China.
Starting our business from producing the construction machine from 1 989,we have extended to manufacture and provide a diverse and com
prensiveproducts, such as concrete vibrator, external vibrator, plate com pactor,power trowel, concrete cutter, tam ping rammer, vibratory roller and others...
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