属于宽松型,比较大,而且比较厚。
YV31S4EN2001
YV31S4EN2002
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YV31S9BN2001
YV31S6IN2000
YV31S9FN2000
YV31S5AN001
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YV31S6EN2000
YV31S6GN2000
YV31S7AN2001
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YV31S7BN002
YV31S7BN004
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YV31S7BN2001
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YV31S7BN001
YV31S2CN2001
属于宽松型,比较大,而且比较厚。