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| GOST 17375 | Elbow 90° as per GOSТ 17375, Steel Grade 20 Destined for pipeline erection.
| More... | | GOST 17378 | Concentric Reducer as per GOST17378, Steel Grade 20 Destined for pipeline erection.
| More... | | GOST 17376 | Т-Joint as per GOSТ 17376 Destined for pipeline erection.
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