Dros y ganrif a hanner a ddilynodd, sefydlwyd gweithfeydd i brosesu arsenig, sinc, a thun ac er mwyn creu tunplat a chrochenwaith.
1	Dros	dros	ADP	prep	_	3	case	_	_
2	y	y	DET	art	_	3	det	_	_
3	ganrif	canrif	NOUN	noun	Gender=Fem|Mutation=SM|Number=Sing	9	obl	_	_
4	a	a	CCONJ	cconj	_	5	cc	_	_
5	hanner	hanner	NOUN	noun	Gender=Masc|Number=Sing	3	conj	_	_
6	a	a	PRON	rel	PronType=Rel	7	obj	_	_
7	ddilynodd	dilyn	VERB	verb	Mood=Ind|Mutation=SM|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	acl:relcl	_	SpaceAfter=No
8	,	,	PUNCT	punct	_	9	punct	_	_
9	sefydlwyd	sefydlu	VERB	verb	Mood=Ind|Person=0|Tense=Past|VerbForm=Fin	0	root	_	_
10	gweithfeydd	gweithfa	NOUN	noun	Gender=Fem|Number=Plur	9	obj	_	_
11	i	i	ADP	prep	_	12	mark	_	_
12	brosesu	prosesu	NOUN	verbnoun	Mutation=SM|Number=Sing|VerbForm=Vnoun	10	acl	_	_
13	arsenig	arsenig	NOUN	noun	Gender=Masc|Number=Sing	12	amod	_	SpaceAfter=No
14	,	,	PUNCT	punct	_	15	punct	_	_
15	sinc	sinc	NOUN	noun	Gender=Masc|Number=Sing	12	conj	_	SpaceAfter=No
16	,	,	PUNCT	punct	_	18	punct	_	_
17	a	a	CCONJ	cconj	_	18	cc	_	_
18	thun	tun	NOUN	noun	Gender=Fem|Mutation=AM|Number=Sing	12	conj	_	_
19	ac	a	CCONJ	cconj	_	21	cc	_	_
20	er	er	ADP	prep	_	21	case	_	_
21	mwyn	mwyn	NOUN	noun	Gender=Masc|Number=Sing	12	conj	_	_
22	creu	creu	NOUN	verbnoun	Number=Sing|VerbForm=Vnoun	21	acl	_	_
23	tunplat	tunplat	NOUN	noun	Gender=Masc|Number=Sing	22	obj	_	_
24	a	a	CCONJ	cconj	_	25	cc	_	_
25	chrochenwaith	crochenwaith	NOUN	noun	Gender=Fem|Mutation=AM|Number=Sing	23	conj	_	SpaceAfter=No
26	.	.	PUNCT	punct	_	9	punct	_	SpacesAfter=\n
