LUM Series Superfine Vertical Roller Grinding Mill
LUM Series Superfine Vertical Roller Grinding Mill

stone crusher machinery second hand

  • prehistoric medicine

    prehistoric medicine is any use of medicine from before the invention of writing and the documented history of medicine.because the timing of the invention of writing per culture and region, the term 'prehistoric medicine' encompasses a wide range of time periods and dates.. the study of prehistoric medicine relies heavily on artifacts and human remains, and on anthropology.

  • pointing machine

    a pointing machine is a measuring tool used by stone sculptors and woodcarvers to accurately copy plaster, clay or wax sculpture models into wood or stone.in essence the device is a pointing needle that can be set to any position and then fixed. it further consists of brass or stainless steel rods and joints which can be placed into any position and then tightened.

  • instruments used in general surgery

    although the term dissection is broad energy devices such as diathermy/cautery are often used as more modern alternatives. grasping or holding instruments: classically this included forceps and clamps predominantly; roughly forceps can be divided in traumatic tissue crushing and atraumatic tissue preserving, such as debakey's

  • fieldstone

    fieldstone is a naturally occurring type of stone, which lies at or near the surface of the earth. fieldstone is a nuisance for farmers seeking to expand their land under cultivation, but at some point it began to be used as a construction material. strictly speaking, it is stone collected from the surface of fields where it occurs naturally. collections of fieldstones which have been removed .

  • livestock crush

    crushes were, and in places still are, used for this purpose in north america and in many european countries. they were usually stand-alone constructions of heavy timbers or stone columns and beams. some crushes were simple, without a head bail or yoke, while others had more sophisticated restraints and mechanisms; a common feature is a belly .