R2.027.0330.0规格参数
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R2.028.0010.0 R2.028.0030.0 R2.028.0040.0 R2.028.0060.0 R2.028.0070.0 R2.028.0080.0 R2.028.0100.0 R2.028.0110.0 R2.028.0120.0 R2.054.0010.0