hat
1. la machin ki lajman te itilize nan petwòl, endistri chimik, siman, chodyè, construction, avyasyon, dlo conservation, pouvwa transmisyon gwo fò won yo ak lòt machin ak ekipman. Li travay principl
eng
1. The machine widely used in petroleum, chemical industry, cement, boiler, shipbuilding, aviation, water conservancy, power transmission towers and other machinery and equipment. Its working principle is rotating bending deformation. For the upper roller can be moved no...