我司所使用的螺紋規均來自于美國PMC及成量。塞規主要用于檢驗內螺紋折算中徑和實際中徑的專用綜合量規，環規主要檢測外螺紋折算中徑和實測中徑的綜合量規，對于檢測值有很高的要求，確保產品的合格率為100%。
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Precision
Randdh serves its global customer base from three strategically positioned manufacturing locations in the Singapore and China.
Quality
Randdh has design and manufactured innovative products for over five decades for world Mechanics manufacturers.
Value
The whole Randdh team is dedicated to providing world class customer service around the world and around the clock.
