Solar collector plate fin surface coating of choice.
集 热 器 的翅片表面涂层选择。
Steel plate material box factory has covered before powder coating, paint for gray RAL7001.
钢板材质箱体出厂前已覆盖粉末涂层，面漆为灰色的RAL7001。
Steel plate material box factory has covered before powder coating, paint for gray RAL7001.
钢板材质箱体出厂前已覆盖粉末涂层，面漆为灰色的RAL7001。
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