LECO kamfani ne na kayan aikin bincike da ke Amurka. Amurka Ricoh kamfanin tun 1936 zuwa kasuwa gabatar da kasuwanci carbon sulfur analyzer, nitrogen oxygen analyzer, hydrogen analyzer, da farko da masana'antu nazarin da sauri nazarin fasahar farawa, ya kasance ci gaba da matsayi a wannan yankin, samar da kyakkyawan infrared carbon sulfur analyzer da oxygen nitrogen hydrogen gas nazarin kayan aiki a cikin ** kewayon. Ricoh ya shiga kasuwar kasar Sin a tsakiyar ƙarshen shekarun 1970, har zuwa yau, an sayar da kayan aiki sama da 3,500 a cikin gida.

Kayayyakin LECO na Amurka suna da babban kasuwa a fannin binciken abubuwa, kayan aikinsa galibi sune carbon sulfometer, sulfurometer, oxygen nitrometer da sauran masu binciken gas masu ƙonawa.

Amurka LECO Force Accessories aka rarraba zuwa nau'ikan masu zuwa:

A. daban-daban wutar lantarki tandu buroshi, wutar lantarki zane, da dai sauransu;

2, daban-daban catalysts, reagents, da dai sauransu;

3, daban-daban nau'ikan crucible, crucible goyon baya, da dai sauransu;

4. daban-daban na'urorin tacewa;

5, daban-daban nau'ikan gilashi consumables, ƙonawa bututu, catalyst bututu, bushewa bututu, da dai sauransu;

6. Sensor coil da kuma dangane da kayayyakin;

7, daban-daban irin O-irin zobe;

8. Shock bututun da kuma dangane da kayayyakin;

9, buga takarda, daban-daban bawul, kewayon cuta, infrared haske tushen da sauran kayayyakin da suka shafi;

10, daban-daban iri Spoons, Pins da dai sauransu;

11, daban-daban nau'ikan haɗin bututu, da dai sauransu;

12, daban-daban samfurin, Amurka Plus samar da sosai wadataccen CSONH samfurin karfe, titanium, jan ƙarfe, zirconium, kwal, lime, ƙasa, kerosene, ma'adinai da sauransu da kuma toka, m samfurin. Duk takaddun shaida za a iya ganowa zuwa asalin.