We are BORFIT have been serving in this product line since 2007We are the main producer all of HDPE 100 PIPE fittings and welding machines from 20mm to 1600mm.Also we are the main supplier for HDPE pipes. you can see our catalogue link at below,https://drive.google.com/file/d/0B7ABE1eFnat6SjgwbFItNHhGejQ/view?usp=sharingIf you have any request please do not hesitate to contact us.Best Wishes...