Ym maes caffael gwaith adeiladu. Dyma ddisgrifiad: "The purpose of preliminaries is to describe the works as a whole, and to specify general conditions and requirements for their execution, including such things as subcontracting, approvals, testing and completion." Oes 'na derm cydnabyddedig? Diolch. Claire Mae Pennawd Cyf yn gwmni cyfyngedig wedi'i gofrestru yng Nghymru a Lloegr o dan y rhif cofrestru 4276774, a chyfeiriad y swyddfa gofrestredig yw 27A Heol Merthyr, yr Eglwys Newydd, Caerdydd, CF14 1DA. Pennawd Cyf is a limited company registered in England and Wales under the number 4276774, and the address of the registered office is 27A Merthyr Road, Whitchurch, Cardiff, CF14 1DA