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Daswell machinery is a company which is specialized in producing the fine stone concrete pump. Our company has abundant technical force small stone crusher diesel engine crushers, excellent manufacturing technique and complete testing methods. The followings are some regular examinations of fine stone concrete pump.Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:portable rock crusher,concrete pump with mixer,Mobile Concrete Brick Making Machine,If you are interested in our products, please contact us freely: sales@daswell.com 1. Check the fine stone concrete pump whether the gap between the cutting ring and the glasses plate is normal or not. 2. Check the fine stone concrete pump whether the reversing of distribution valve and the positive and negative rotation of mixing device is normal or not. 3. Check the hydraulic system whether there is oil leakage or not. 4. Check all screw joints of fine stone concrete pump whether they are firmly linked. In order to ensure the high quality and meet all customers’ requirements JZR series diesel portable mixers, Daswell improves the product quality and tastes constantly. We welcome all customers to come to buy our products.