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2. Non standard plum blossom groove with column pan head bolt M8 × 1.25 × 50 - 30 (grade 10.9)
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3. Non standard plum blossom groove with column pan head bolt M8 × 1.25 × 40- 25 (grade 10.9)
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4. GB93 φ8 (environmental color)
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5. GB97.1φ8 (environmental color)
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8. Non standard internal plum blossom bolt M6×12 (304 stainless steel)
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