First the ground has to be cleaned up. Dry, holes filled smooth, polished, and then used BY20 high-temperature preservative for coating brush again, and brush back and forth evenly, brush again.
Jiangxi Boya High Tech Co., Ltd. All Rights Reserved Gan ICP B No. 13007609
Address: No.12, Xindi Road, Changnan Industrial Park, Nanchang City, Jiangxi Province Telephone：0791-88217862 Technical Support：YunDuan Technology
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