Pure packing hlua yog Slexible, yuav luag tag nrho cov tshuaj inertia, qhov ruaj khov, tsis tshua muaj coefficient ntawm kev sib txhuam thiab zoo heev rau compression.Nws yog haum rau tag nrho cov tshuaj compound, lwm yam & rotary motions shafts, rods, piston li qub, chav, expansion pob qij txha.Nws yog ib ...
Nyeem ntxiv