Cantilever assembly - heavy

80 cantilever assembly：
1.this series of cantilever assembly with cast iron pipe for suspension or support control box.
2.the use of cast iron process, and in the design of the full consideration of the structure of the reasonable, greatly improving the whole cantilever system strength.
3.for a wider range of applications, this series is available for selection of connectors, rich in category, and is suitable for different use requirements.