Report copyright - 螺纹量规 库存一览表 - chinaosg.com€¦ · 旧JIS Previous JIS P.11 M2〜M36 1级 Class 1 P.30 M2〜M16 3级 Class 3 P.33 M1〜M50 6H, 5H GPNP JIS(ISO等级) JIS (ISO)
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