
| Eriri | Oke eriri | H | GL | Nha Spanner | Beisit No. | Nkebi nke edemede |
| M16X1.5 | 3.0-8.0 | 65 | 15 | 24 | BST-Exd-DS-M1608BR | 10.0102.01601.100-0 |
| M20X1.5 | 3.0-8.0 | 65 | 15 | 24 | BST-Exd-DS-M2008BR | 10.0102.02001.100-0 |
| M20X1.5 | 7.5-12.0 | 65 | 15 | 24 | BST-Exd-DS-M2012BR | 10.0102.02011.100-0 |
| M20X1.5 | 8.7-14.0 | 68 | 15 | 27 | BST-Exd-DS-M2014BR | 10.0102.02021.100-0 |
| M25X1.5 | 9.0-15.0 | 84 | 15 | 36 | BST-Exd-DS-M2515BR | 10.0102.02511.100-0 |
| M25X1.5 | 13.0-20.0 | 84 | 15 | 36 | BST-Exd-DS-M2520BR | 10.0102.02501.100-0 |
| M32X1.5 | 19.0-26.5 | 87 | 15 | 43 | BST-Exd-DS-M3227BR | 10.0102.03201.100-0 |
| M40X1.5 | 25.0-32.5 | 90 | 15 | 50 | BST-Exd-DS-M4033BR | 10.0102.04001.100-0 |
| M50X1.5 | 31.0-38.0 | 100 | 15 | 55 | BST-Exd-DS-M5038BR | 10.0102.05001.100-0 |
| M50X1.5 | 36.0-44.0 | 100 | 15 | 60 | BST-Exd-DS-M5044BR | 10.0102.05011.100-0 |
| M63X1.5 | 41.5-50.0 | 103 | 15 | 75 | BST-Exd-DS-M6350BR | 10.0102.06301.100-0 |
| M63X1.5 | 48.0-55.0 | 103 | 15 | 75 | BST-Exd-DS-M6355BR | 10.0102.06311.100-0 |
| M75X1.5 | 54.0-62.0 | 105 | 15 | 90 | BST-Exd-DS-M7562BR | 10.0102.07501.100-0 |
| M75X1.5 | 61.0-68.0 | 105 | 15 | 90 | BST-Exd-DS-M7568BR | 10.0102.07511.100-0 |
| M80X2.0 | 67.0-73.0 | 123 | 24 | 96 | BST-Exd-DS-M8073BR | 10.0102.08001.100-0 |
| M90X2.0 | 66.6-80.0 | 124 | 24 | 108 | BST-Exd-DS-M9080BR | 10.0102.09001.100-0 |
| M100X2.0 | 76.0-89.0 | 140 | 24 | 123 | BST-Exd-DS-M10089BR | 10.0102.10001.100-0 |

Iwebata eriri Exd nke metric nke nwere ihe mkpuchi okpukpu abụọ - ihe ngwọta zuru oke maka mkpa njikwa eriri ụlọ ọrụ gị niile. Emebere eriri a nke ọma iji nye nchebe kachasị maka eriri gị ebe ọ na-ahụ na arụmọrụ a pụrụ ịdabere na ya na nke dị irè. Emebere eriri Exd nke nwere ihe mkpuchi okpukpu abụọ iji mezuo ihe achọrọ nke gburugburu ebe dị ize ndụ ebe nchekwa dị oke mkpa. Site na njirimara mkpuchi okpukpu abụọ ya, eriri a na-ahụ na akara siri ike ma dị nchebe, na-egbochi mbubata nke uzuzu, mmiri mmiri na ihe ndị ọzọ na-emerụ eriri ahụ. Ike mkpuchi siri ike a na-eme ka ọ dabara adaba maka ọtụtụ ngwa, gụnyere mmanụ na gas, petrochemical, igwu ala na ụlọ ọrụ kemịkalụ.

Ihe na-eme ka eriri waya a dị iche na ndị ọzọ dị n'ahịa bụ imewe ọhụrụ ya na nkà aka ya dị elu. E ji ihe ndị dị elu mee ya, eriri waya a na-ekwe nkwa ịdịte aka pụrụ iche na ogologo oge ọbụlagodi na gburugburu ebe siri ike na nke kacha sie ike. Njirimara ya na-eguzogide nchara na-eme ka e chebe eriri waya gị pụọ na nchara na mmebi, na-ebelata nke ukwuu ihe egwu nke oge nkwụsị na ọnụ ahịa mmezi. Eriri waya Exd nke ejiri okpukpu abụọ mechie na-enye usoro nrụnye na-enweghị nsogbu na enweghị nsogbu. Nhazi ya na-enye ohere maka nchikọta ngwa ngwa na mfe, na-achọghị ọzụzụ ma ọ bụ ahụmịhe pụrụ iche. Ma ị bụ ọkachamara nwere ahụmahụ ma ọ bụ onye ọhụrụ na njikwa eriri waya, e mere eriri waya a iji mee ka usoro nrụnye dị mfe, na-azọpụta gị oge na mgbalị bara uru.

Tinyere njirimara ọrụ ya dị mma, eriri waya a na-agbaso ụkpụrụ na ụkpụrụ nchekwa mba ụwa. Ndị otu a ma ama na-enye asambodo ya, na-ahụ na ọ na-emezu ihe achọrọ maka ịdị mma na nchekwa kachasị sie ike. Site na arụmọrụ a pụrụ ịdabere na ya na nrubeisi na ụkpụrụ ụlọ ọrụ, ị nwere ike inwe udo zuru oke ịmara na sistemụ njikwa eriri waya gị dị n'aka nchekwa. Na mgbakwunye, eriri waya a na-enye ọtụtụ ihe dị iche iche iji nabata ọtụtụ nha na ụdị eriri. Ọ na-enye nchekwa na ịdị mma maka ọtụtụ dayameta eriri, na-edebe eriri gị n'ọnọdụ ya. Mgbanwe a na-eme ka ọ dị mma maka ọrụ nwere ọtụtụ eriri nke nha dị iche iche, na-enye ohere maka njikọta na-enweghị nsogbu na nchekwa ma ọ bụ arụmọrụ.