最初，第一艘攻击型潜艇上装载有一个木制手动升降柄和皮革爆炸管，爆炸管用来把炸药用木钉固定在舰船上。
In the beginning, the first attack subs consisted of a man hand-cranking away in a wood and leather suicide tube while attempting to attach explosives to a battleship using a wooden screw.
考古学家在坟墓中还发现了金属杯、箭、鞍具、皮革护胸、靴子、木制餐具、刀具、一副刀鞘和一件汗衫。
The archaeologists also found bows, arrows, saddles, leather chest-protectors, boots, woodenwares, knives, an iron aw, a leather scabbard, and a sweater in the graves.
应用：适合木制品、纸张、皮革布料、有机玻璃、环氧树脂、亚克力、不饱和聚酯树脂等非金属材料。
Applications: Suitable for wood, paper, leather, fabric, acrylic, epoxy, acrylic, unsaturated polyester resin and other non-metal materials, etc.
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