Cynhyrchion
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QHZ-1150/1300/1500/1650/2300
● Darn AB
● Manwl gywirdeb uchel
● Effeithlonrwydd Uchel
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QHZ-1700
● Darn AB
● Manwl gywirdeb uchel
● Effeithlonrwydd Uchel
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QHZ - 2000/2200/2400/2800
● Blychau Syth
● Blychau Corneli 4/6
● Blychau Gwaelod Cloi
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QHZ-1700
● Blychau Llinell Syth
● Blychau Gwaelod Cloi
● Blychau 4 Cornel a 6 Cornel
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QHZ-1650
● Llinell Syth
● Blychau Cornel 4/6
● Cloi Gwaelod Damwain
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QHZ-1100
● Blychau Llinell Syth
● Blychau Waliau Dwbl
● Blychau Gwaelod Cloi Damwain
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QHZ-800
● Blychau Syth
● Blychau 4/6-cornel
● Blychau Gwaelod Cloi-Dramgwydd
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QHZ-1200
● Blychau Un Ochr
● Blychau Gwaelod Cloi
● Blychau 4 Cornel a 6 Cornel