QJ 842.1-1984 塑料注射模具 Ⅰ型直浇道注射模架.pdf

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QJ 842.2-1984 塑料注射模具 Ⅱ型直浇道注射模架.pdf

QJ 842.3-1984 塑料注射模具 Ⅲ型直浇道注射模架.pdf

QJ 842.4-1984 塑料注射模具 Ⅳ型直浇道注射模架.pdf

QJ 842.5-1984 塑料注射模具 Ⅴ型直浇道注射模架.pdf

QJ 842.6-1984 塑料注射模具 Ⅵ型直浇道注射模架.pdf

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