秉持降低客戶成本
服務客戶信念為最高原則
服務客戶信念為最高原則
We hole the spirits of reducing costomers'costs
and service costomers as the highest principies.
and service costomers as the highest principies.
Copper Additives
- Copper sulfate Brightener
- Pyrophosphate copper Brightener
- Bronze dyed black agent