malleable iron pipe fittings importer

Our main products include malleable iron pipe fittings, carbon steel pipe fittings, grooved pipe fittings, buttweld pipe fittings, stainless steel pipe fittings, flanges, bolt nuts and nails, PTFE tape and hemp.   

How to pick up a good quality of malleable iron pipe fitting？
1.The internal and external surfaces of the pipe must be clean and free of any obvious defects such as cracks or mis-boxes.
2.The mechanical properties of the pipe are tensile strength ≥ 330MPa and elongation ≥ 8%.
3.the thread of the fitting adopts the international standard ISO 7-1:1, except for the United States, it is the same as the pipe thread standard specified by most countries in the world.
4.the quality of the pipe galvanized layer is not less than 500g/m2.
With regard to the surface quality requirements of Ma Steel Pipe Parts, we will first introduce them here, and we are delighted to welcome you to Shijiazhuang Jizhong Malleable Iron Co.,Ltd to exchange ideas!