排列3专家预测推荐号
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Right prism

                            Material:K9 ,BK7,Fused Silica or customized
                            Size: customized
                            Size Tolerance:+/-0.1mm
                            Deviation:<10 sec
                            Clear aperture:>90%

                            Surface Quality: 40/20 or 60/40
                            Coating: None  or customized

排列3专家预测推荐号