Item Code Concrete coverLengthQty/Ctn(m)Qty/Ctn(ft)SB203/4"20mm76 cm84275SB251"25mm76 cm84275SB301 1/4"30mm76 cm76250SB351 3/8"35mm76 cm76250SB401 1/2"40mm76 cm68225SB451 3/4"45mm76 cm53175SB502"50mm76 cm53175SB602 1/2"60mm76 cm45150SB753"75mm76 cm30100