卓石可加长 分体式洛阳铲 掏土打洞/打桩坑/考古勘测/实用好工具 According to the standards for export to Europe and the United States.polymar matarlals ara usad to thickan the shovel bodyThe antl-cxldation antl-freazing waar-reslstl ng antl-cracking additlve and other additiva components are addad to snsura the shovol body to hava sumclant strangth and long. lasting wear-resistingin wintar,tha quallty of nen-brittla racking is suparlor to that of ordinary snw shovals