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V truba dumaloq shpalli burg'ulash panjaralari va asboblarini, shuningdek, uchi, tashqi, kesish, burg'ulash va hokazolarni ishlov berish uchun kvadrat asboblar uchlarini ushlab turadi.
Element NO. | A(in) | B(in) | C(in) | D (in) | Swing dia(in) | |
550-102 | 250-102 | 1 | 1/2 | 29/64 | 1-1/2 | 3/16-1/2 |
550-202 | 250-202 | 1-1/8 | 5/8 | 1/2 | 1-3/4 | 1/4-5/8 |
550-302 | 250-302 | 1-7/16 | 3/4 | 5/8 | 2-1/8 | 1/2-3/4 |
550-402 | 250-402 | 1-23/32 | 1 | 3/4 | 2-1/2 | 1/2-1 |