Tiansheng (HongKong) Trade Co., Limited, old name is Shanghai Baoyang International Co., Ltd. it's a manufacturer in China specializing in municipally construction products. We located in the economic developing area of Yangtse River Delta, the biggest economic and financial center, of china---Shanghai.

We had expanded our products line as follow:

1) Cast ductile(gray) iron manhole cover and frame (EN124 STANDARD)

2) Hot deep galvanized grating

3) Composite plastic (SMC/BMC) manhole cover and frame

4) Polymer concrete channels and plastic channels (with grating)

5) Cast Iron Firplace, Tree Grating, And Other Ornament Casting

We also have the capacity to design& produce new products according to customers' requirement.

Our products are mainly exported to EU, Middle-East, USA and other countries. And we are the one of mainly supplier of THE THIRD BIGGEST civil products importer now. We export approach 100containers per month now. All products we offered with high quality and conmetitive price.