该组合式机械三通密封的特殊设计使之能配合开孔机开出与管道内径相等的孔；
The special design of the tee branch is appropriate for drilling holes equal to the inner pipeline . diameters.
为满足客户要求，公司还备有三通、四通、弯头等锻造件，也可根据客户要求，承接各种机械配件的锻造加工。
To satisfy customers' need, we manufacture forging products such as three-way, four-way and elbow and can also undertake the forging process of all machinery fittings.
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