dingshang dingshang
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dingshang dingshang создал новую группу:
The use of stainless steel pipes is useful in many buildings. Among them, we must be clear about the points of attention in welding. Let's talk about the problems that need to be paid attention to in welding stainless steel pipes.
In the welding process,... больше- 16 ноября 2022 г.
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dingshang dingshang только что вошёл. Скажи привет!
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