铅门一般采用钢质材料制作，具有经久耐用的特点。
该厂产品的主要特点是工艺精湛，经久耐用。
The main characteristic of this product is high technique and durable in use.
该厂产品的主要特点是工艺精湛，经久耐用。
A perfect technology is the main character of the products of the factory, also durable.
该厂产品的主要特点是工艺精湛，经久耐用。
The key point of the product is fine in craft and durable in using.
该厂产品的主要特点是工艺精湛，经久耐用。
The key point of the product is fine in craft and durable in using.
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