Shenglong Machinery Co., Ltd. is a professional manufacturer of screws and rubber-melting cylinders, possessing high technology, advanced facilities and newly technique. With ten years' experiences of making screws and rubber-melting cylinders, our company can produce single, cone twins and plane screws as well as rubber-melting cylinders with high standard, high precision properties on large scales. Our products match the known plastic machines of large and middle enterprises. Quality standards...
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