About UsEstablished in 2006, Ningbo Cowell Industry Co.Ltd has gained immense expertise in supplying & trading of Screw barrel, screw tip, shut off nozzle etc. The supplier company is located in Ningbo, Zhejiang and is one of the leading sellers of listed products. Buy Screw barrel, screw tip, shut off nozzle in bulk from us for the best quality products and service.
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