The biodegradable material PLA is a semi-crystalline polymer with a melting temperature of 180°C. Then why is the heat resist......
At present, plastic express tapes made of polyethylene (PE) materials are widely used in China (PE materials for express bags......
When the biodegradable straw production line produces degradable straws with sharp tips, the straws produced have thick point......
According to Jinshan reports, recently, Shanghai Jinshan District Market Supervision Bureau conducted a thorough mold inspect......
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