July 22, 2013, Hastings, Michigan –- Hastings’ fiber glass extension arms for composite or wood cross arms can be used with both their round and super U extension arms. The extension arms have rubber grippers that won’t damage composite cross arms, and the cross arm loop is powder coated to prevent damage to the composite cross arm. They fit composite or wood cross arms up to 4.5 inches x 6.75 inches. Retrofit kits are also available to convert existing extension arms.
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