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KB series PVC gusset plate special model.

KB series PVC gusset plate special model.

PVC gusset boards are extruded from polyvinyl chloride resin as the main...

Zhejiang Hongyi Chemical Co., Ltd.

Special whitening agent for artificial stone.

Special whitening agent for artificial stone.

The mixture of stone powder and crushed stone with organic resin as bind...

Zhejiang Hongyi Chemical Co., Ltd.