In album: Zhoushan Changjia Plastic machinery Co.,Ltd.
This Company's products are based upon high quality steel 38CrMoALA, which is conditioned, surface nitridized (or coated with hard alloy) and polished, showing very high precision. The company located in the middle of Jintang Island of the city of Zhoushan, and the transportation is very convenient. https://www.cjscrewbarrel.com
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