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Member Since 6 Years
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coupling blanks is the un-threaded couplings. coupling manufactruers can thread on it directly.
size (2-3/8" to 20")
2. Steel grade of tubing coupling
steel grade: h40, j55/k55, m65, l80, r95,n801/n80, c90/t95, c110, p110 thread type: eue, nue
3. Main features of tubing coupling
fastest delivery, excellent product, professional service team, decades exporting experience, our products have exported to more than 200 countries in the world. Here you can take easy choosing your needed products.
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